Singulair and yahoo

Sales of Merck's asthma and allergy drug Singulair dropped 1% to $1.1 billion for the second quarter. U.S. sales have been hurt by the recent introduction of an over-the-counter version of rival drug Zyrtec by Johnson & Johnson (JNJ), as well as concerns about the Food and Drug Administration's March alert of a possible association between Singulair and suicide and related behavioral side effects Got this off cnn money,i don't know but thought zyrtec and singulair were different drugs,my son at one time was prescribed both to take at bedtime

My 9 year old son only took Singuliar for about 5 weeks. He had side effects almost immediately, he was so aggressive, angry all the time, headaches, stomach ache and feeling like he was going to throw up, bad nightmares, a horrible rash, biting his nails, not focusing in school and got into trouble all the time, no appetite but his little body seem puffy all over. He has been off this medication for 3 months and he is still not 100%. He cries at little things and still has the same rash and with meds it is not going away. He had to change schools as he still was having problems in school. He just seems like he is not the same little boy and something is just not right. I do not know what to do at this point. Doctors say it should be out of his system by now, but if it is than there is permanent damage to his brain as he is just not the sharp little guy he was. We have had to take him out of all sports. Anyone else having these same problems???

Who administers this site? I posted a side effect last night after I registered and then this morning I got an email saying there was a reply to my posting and when I tried to log in, my account was inactive and my posting had been removed, as had the reply to my posting. I don't know if it is because I put a link the an online reporting tool where the FDA is compiling feedback from people/or their children who have experienced terrible side-effects. Here is the link again and I urge you all to report your cases: http://www.fda.gov/cder/drug/early_comm/montelukast.htm

My son is 3.5 and has been on Singular for 2 months and just like all of the other stories about the other young children posted here, he is a different kid after being on Singular. Last night was the first night I took him off of it. All of the side-effects that are mentioned here are the same ones my son is experiencing, nightmares (screaming in the night), hyper, aggressive, reliving injuries from days past, the day care telling me that they now have concerns about how different he has been lately and the even used the term "bad behavior". They said he is hyper, he screams, not listening, aggressive. He is a favorite at day care since he is so loving, polite and kind. I know all parents say that, but pretty much anyone who has met him compliments me on how well behaved he is. I am even nervous to have people over since he seems out of control and I have found myself ensuring people that he isn't normally like this. I have taken him off as of last night and I am hoping he will get back to his old happy-go-lucky self soon. Does anyone know how long it can take to get this poison out of their system? I pray that there are no permanent side-effects.

WOW!!! I am glad I came across this website. I have twin boys that will be 7 this month. One has been on Singulair for about 3 years for allergy induced asthma and my other son has been on it for 9 months for allergies. I am taking them both off of it today. The son that is taking the medicine for 3 years has become increasingly angry and gets upset over small things. Over Memorial weekend, he lost a game he was playing on the wii and exploded. He was banging his head and then started to hit me. NEVER in my life have I seen him attack anyone. A few days later he threw rocks at his friend because he wanted the wagon. Over the past 3 years I have noticed some change in him and just took it as growing pains. He has always been a strong will child. However, over the past 3 years he has gotten worse and since he has physically attacked me and his friend, I have decided to send him to counseling. Now I firmly believe it is the Singulair.

My other son has been on it since August. He started to have anxiety within a month of taking it. His behavior has been stressed, depressed and not wanting to play with other kids. He was biting his nails to a nub, licking his hands, not talking to anyone at school and rubbing his head. I have also noticed he does like to look at the person he is talking too. Of course I thought the worse and thought he was being molested. I went to his Teacher and she has worked very hard with him, but he is still a loner. If you knew him before, he played with everyone and enjoyed life. I was told by his Ped. that he had anxiety and to have him see a shrink.

I am hoping that after taking them both off this medicine, I will see improvement.

I have a three year old son who has severe allergies. He's been taking singulair for 2 years on & off just in the allergy season. He started taking, singulair again in the beginning of April. One morning he woke up and both eyes were really swollen and red, I called his doctor's office and told them i thought he had pink eye, after 2 different drops and no change I brought him into the doctor's to see if it could be his allergies, and they agreed and started him on Zyrtec. I still was not impressed with the results so i brought him back yet again to see if we could see a specialist. Instead they put him on nasonex to try.
In the beginning of March I started to see a change in my usual happy fun loving son. He was scared to sleep in his bed, waking up in the middle of the night from bad dreams, uncontrollable screaming fits that would last up to an hour, saying he wants a Boo Boo. At first we thought it could be jealously over his new brother, or maybe something at his school.
Then i found this website and everything clicked, how scary it must be for a child to have these horrible thoughts and not be able to understand or stop them. What are the people at merck thinking??
Can any one tell me when the symptoms stop. He's been off for a week and we see some improvements. But he still has these fits with almost an OCD tendency to them (mainly when he's overtired), stomach pains, lack of appetite.

My son is almost 6 yrs old. He has been taking Singular for approx 3 years, in addition to Claritin and Nasonex. This is all for his allergy to mold. His doctor started him on these meds after a 6 month episode with sinus infections leading to asthma-like symptoms. We have not noticed anything unusual about his behavior until approx 3 months ago. He started waking up every night (2-3 hours after going to bed) with bad dreams. At first he would not fully awaken and fall back asleep immediately. After a month or so of this happening most nights, he had two nights in a row where he woke up screaming and was inconsolable for about 30 minutes. We initially thought it was night terrors, but he was not scared or fearful, he was just upset/angry. He would hit the bed repeatedly and yell. He didn't know what he was upset about but would talk about how he thought we hated him, he was dumb, etc. After about 30 min he would 'snap out of it' and return to his normal self and go back to sleep easily.
At first we thought these were night terror brought on by a recent fever, but he had another episode last night. He has also been falling apart at the littlest things and getting quite violent (for a 6 yr old). He was sent to his room yesterday evening because he was complaining about the dinner his mom made (lots of complaining these days..). He had a total melt down an started throwing things and hitting the door so hard he put a hole in it.
Some of this behavior I would chalk up to normal kid stuff, new baby brother, etc. But I am suspicious about the negative thoughts, bad dreams, and instant melt downs... I stopped giving him Singular today and we will see what happens. God bless you all as we figure these things out...

I have two sons on Singulair, my three old was suspended today from pre-school for bad behavior. Screaming, biting, scratching, and hitting have been going on for the last few months. But worse the past two weeks. He has always been active and played like a boy, but he has been getting violent. We have tried positive reinforcement, praising good behavior both verbally and with rewards, I have tried time-out, being grounded, not being able to participate in activities, no t.v. and old fashioned butt spanking. All of this with no positive results. I am not looking for an excuse for my child's behavior, but could Singulair really be the cause of his aggression?

My 4yr old son has been on allegra for 2 yrs now and it seems that it wasn't doing much anymore. so our doctor prescribed Singulair. He gave us a two week trial to see if helped. Well!!! Our once happy go lucky 4yr old is now very emotional and gets upset very easily and can't stop crying ( even says he can't stop crying) when he gets upset. He is unable to console rationally when he is worked up. Today was the last dose of the two week trial and I after reading all this, it was and will be his last dose...

Parents beware of Singulair
I would two to one rather chase him around with a tissue.

My 2 year old son was put on singulair to help with asthma and allergies. Within 2 weeks we noticed a change in him - he wasn't the happy boy he normally is. We wound up in the ER one weekend after he had 3 petit mal seizures. The ER doc diagnosed febrile seizures. I wasn't convinced. Our pediatrician didn't agree, either, and sent us to a neurologist (but he didn't think singulair was the cause). The neurologist also hadn't heard of seizures associated with the drug.

My poor boy had an EEG and was in doctors offices, hospitals at least once a week until the EEG results came back normal - scary for a 25 month old child. I stopped the medicine immediately after our ER visit - call it mother's intuition. He hasn't had a seizure since. Although the doctors aren't convinced singulair caused the seizures, I firmly believe it did.

My son, Wilson, is a bright, easy-going, athletic 12 year old who has a history of asthma and allergies. After several asthmatic episodes from age one year to about four, he was prescribed Singulair. The asthma triggers seemed to be change of season or congestion from a cold, but not from exercise or physical exertion. As I recall, his asthmatic episodes seemed to decrease after he was on 5-10 mg of Singulair, and even more so with each passing year. Over the years, of my three sons, Wilson was the one to catch any virus that came around and missed more school time than both of his brothers combined. Often, he was the only one to get sick from a virus, which never passed to anyone else in the family.
About five years ago, Wilson started complaining of stomach aches. He was tested and was prescribed Prevacid on and off since then with varying success. In the last couple of years, headaches would come and go. He was re-tested for allergies and blood work with no conclusive results. About 2-3 years ago he would complain that he “felt funny…like he needed to do something.” Further conversations revealed that he was expressing anxiety. He’s a good student, has lots of friends at school, and is popular among his sports team mates. Occasionally, a teacher here and there over the last couple of years would note that he did not participate enough in class, or did not appear to be attentive. We thought perhaps he is shy. Still his good behavior, agreeable personality and diligence otherwise earned him good grades overall. He loves school and was very unhappy having to stay home when he was sick.
This past winter, he seemed to catch a virus about once every month and a half which caused him to miss 2-3 days of school. Headaches and stomach aches were common with each illness (sometimes nausea), and sometimes these same symptoms when he was not ill. He would only complain when they were prolonged or significant. Trips to the doctor did not result in anything conclusive. Again, Wilson was only too happy once he returned to school.
He claims that sometimes in school he feels like he’s in a fog and has difficulty concentrating. He gets plenty of sleep and sometimes sleeps up to ten hours during the weekend. We attributed it to adolescence and a busy schedule. He claims that this year is the easiest for him at school, and his social life with his friends is very active. His friends’ parents like him and find him to be an agreeable child. Other adults mistake his sometime mumbling answers and lack of eye contact rude. We concluded that he is just shy. He is the most hyper of his brothers, and has difficulty sitting still and constantly exclaims that he’s bored. We chalked it up to being an active boy. His grades are good in school and we never get complaints about bad behavior.
The last illness started a week ago, and he’s still out of school. The doctor said he had no significant allergy symptoms, other bacterial infections, and his blood work all returned with normal results for white blood counts, liver and kidney functioning and anemia. He can’t return to school because of his constant headaches (which cause pain in different parts of his head), nausea, constant stomach aches, no matter what he eats, and feelings of anxiety, mostly in the evening hours. He’s also complaining of dizziness, leg cramps and other muscle soreness. The notable difference in this illness is the anxiety. My husband and I take turns staying home with him, but if we left him alone for a half an hour at a time while the other was in route picking up a sibling, he became very anxious. In the past, he seemed to enjoy some alone time at home so he could play his computer games. He also becomes easily dizzy with shooting pains in his muscles. The doctor said that viruses can manifest themselves in later stages in the form of sore muscles. However, he was concerned about Wilson’s feelings of anxiety. The anxiety had not been as prevalent in prior illnesses. I finally signed onto the internet reading all the stories about other parent’s observations of their children on Singulair. My husband cautioned me about “internet diagnosing” with symptoms and stories that can be easily taken out of context in hope of self-diagnosis. I’ve always thought that Wilson’s doctors have had good judgment. Both my primary physician and allergist don’t think that Singulair has caused these symptoms, but agreed to take him off as long as we monitored any effect on his asthma.
I don’t know what to think. I want the cause of these problems to be the Singulair, because it’s an easy answer. Today will be the first day he’s off the medication. He probably won’t go to school again tomorrow. We’ll wait and see what happens…

Sorry, I can't just walk away.

When you find patents or patent applications for certain purposes, then you know that your ideas are well founded. There are several patents for using an anti-malaria drug for asthma. I would bet that somebody had that idea all the way back to the 1960's. So it is very possibly no coincidence at all that a chloroquinoline or other quinoline ring would be part of montelukast's chemical structure.

Here is one of the patents.

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It is well known that quinoline rings can be toxic to some people even very rapidly. As in this very extreme example.
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PEDIATRICS Vol. 27 No. 1 January 1961, pp. 95-102 This Article

FATAL ACUTE CHLOROQUINE POISONING IN CHILDREN
Howard M. Cann M.D.1 and Henry L. Verhulst M.S.1

1 National Clearinghouse for Poison Control Centers, Accident Prevention Program, Public Health Service, U. S. Department of Health, Education, and Welfare
Four cases of acute chloroquine poisoning in children are presented. In three instances death occurred within 2 hours of ingestion of larger than therapeutic amounts of the drug. The rapid occurrence of death in acute chloroquine poisoning is probably explained by complete and rapid absorption of the drug from the gastrointestinal tract resulting in high blood concentrations which depress vasomotor function and respiration. Cardiac arrest follows and may be caused by the direct myocardial action of chloroquine, to anoxia, or to both. The similarity of the manifestations of acute chloroquine poisoning and those of acute quinine and quinidine poisoning suggests that acute toxicity may be attributed to the quinoline ring portion of these drugs.

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I don't think that we are seeing extreme examples. But we may be seeing less extreme immediate reactions or reactions where the toxicity builds up over time.

Quinoline rings are know to cause neurotoxicity. There are theories about how that happens. One of the theories is about blocking connexins which are gap junction proteins in the brains.

I don't know how montelukast could be breaking up so that it causes toxicity. Or if the problem is the how rapidly the liver enzymes can metabolize it. But there is plenty, plenty, plenty of clinical evidence that there is a quinoline ring culprit somewhere in the picture. Or some by-product of that causing problems.

Somehow it was decided that montelukast did not have the safety issues that the other drugs in the same category have. See this.

"The starting point in the development of montelukast appears to be a quinoline-containing structure, likely identified as a weak random screening lead (Figure 3). The Merck group hypothesized that this molecule was mimicking the olefin backbone of cysLTs, and that the addition of mimics for the acid and peptide regions of LTD4, might improve its potency. As a first step, the dithioacetal linkage first seen in some SmithKline compounds was incorporated; this led to a compound with greatly increased in vitro potency but poor oral bioavailability. When one of the carboxylic acids was replaced by an amide, forming MK-571, the new antagonist had even greater potency and good efficacy following oral administration. The enantiomers were resolved to yield MK-679 (verlukast), a compound with better clinical effects than MK-571, but whose clinical development was stopped for safety reasons. Further structure-activity relationship studies led to the development of montelukast (16), an antagonist that appears free of the safety concerns plaguing earlier members of this series."

If we can find out why the earlier versions were not safe and how they thought fixed it, then maybe we can find out what is going on with the quinoline ring in some people.

I would be very surprised if the FDA will address our concerns. Why does it always seem like they wait for enough people to die like in Vioxx? Wasn't Vioxx responsible for thousands of deaths?

We have all been saying that our issues regard not being informed about all of the possible side effects. And, we know that Singulair works well for some people. Nobody wants to take a good drug away from those for which it probably performs miracles. People who have toxic side effects have a right to know up front.

My observations about montelukast's chemical structure are either general or not quite 100% correct or could be quite vague - so forgive me. I do not claim to be good at organic chemistry. But from doing a little work, I have come up with some observations.

1. It would seem to me that montelukast might work quite well for people who have developed mold category related asthma. I observed that chloroquinolin, a component of montelukast, is a good fungicide effective against Aspergillus, Alternaria, Cladosporium, Penicillium and Candida. Dust mites can only digest if helped by aspergillus so they go into the mold category. Molds produce millions of spores so anyone who lives in contact with mold would be chronically sick from their presence. Then people get hypersensitized to that.

I am probably wrong but I could imagine that montelukast is: 1) a ligand that binds to an empty cysLT1 receptor for a period of time 2) 7-chloroquinolin-2-yl which either acts intact or breaks down into a quinoline fungicide so that it kills the chronic mold/fungus infection and 3) a sulphur/methyl anti-inflammatory component that tells the t-cells that they are not needed so they will die. Wow, that would be great for mold asthma if it was completely non-toxic. It would be also great under controlled circumstances for many people who are mold-miserable. If I am wrong, I better go out into my garage and start inventing such a drug.

This is my visualization to try to explain the side effects of neurotoxicity. So adverse reactions could be to the quinoline component as an allergic reaction or dose related so that it just built up to a toxic level over time. There are many signs that t-cell populations are significantly reduced by montelukast. The fact that the Italians can do it in the test tube might be that it's a chemical component of montelukast designed to cause the t-cells to die.

Montelukast is a large molecule so Artie says it cannot penetrate the blood brain barrier. That would be an argument if nobody was complaining about neuro-psychiatric side effects. The neuro-psychiatric side effects are identical to quinoline and quinolones. When I read about Lariam, it just sounds like a more extreme version of Singulair side effects. Chloroquinolins were used before they invented Lariam, which is stronger. The malaria Plasmodiums became immune. Hallucinations, anxiety, depression, suicidal thoughts are completely consistent in all of the quinoline/quinolones. If montelukast breaks into sub-molecules then quinolines easily penetrate the blood brain barrier.

I find clinical evidence that montelukast may act as more than more molecule. And, that there is a rational for the existence of the chloroquinolin and evidence that it may be the source of toxicity.

I am glad to risk being called crazy. That is what the internet is for. We can present our ideas and discuss. So, just take this with a grain of salt. If I am close to the truth, this post will find it's proper home.

Our son was put on Singular almost 2 years ago to help with his "moderate" asthma. It has been the hardest 2 years for our family. My son who was already very senstive became very depressed. He showed no interest in anything. He was always sad and very down on himself. He had awful night terrors/nightmares. He didn't want to go to school or do anything. We continued to sign him up for sports/piano/scouts and it was a battle to get him to go. He always had headaches, which I thought were because of dehydration and made him drink water. We had him seeing a therapist trying to help him with the sleeping problems and the depression. We switched his room with his sister to physically make him closer to us at night. He was anxious and very irritable. If something went wrong, he couldn't handle it and had complete meltdowns. If he didn't eat anything for a while and his blood sugar got low, he was uncontrollable. To add to the problem was he was never hungry so I would have to force him to eat something about every 2-3 hours to prevent the meltdown.

The good news is that he has been off of Singular for over a month now and he is a new kid. He is excited to go to practice and will ask his dad to play catch with him in the yard. He is happier and we have not heard once "this is the worst day ever" which we had heard all the time before. He has not had one headache and seems to have a little bit of his appetite back. He is happy and holding his head high. Now, he still doesn't want to go to school (what 8 year old boy does), but he doesn't fight me when I tell him it is time to go. He does not have the meltdowns or the irritability. He even showed some empathy to my husband last week.

My husband and I are amazed at how different he is. We are also very upset that for almost 2 years we made his life miserable by forcing him to take this drug. I think for kids that are already sensitive to things it heightens everything! I am filing a complaint with the FDA and spreading the news to all my family and friends. I hope this information helps! I know I have learned a lot from reading these posts.

My son will be 6 in June. He has been on singulair since he was 2. About a couple of months ago I noticed a change in his mood. Like he was depressed. Getting very upset if he couldn't do a certain thing. To the point of crying. Also crying if we get on him for something and not yelling at him just talking to him. He's always seems to be in a daze all of the time. And when you ask him a question, you sometimes have to ask him several times. To be 5 he is very hard on himself. He thinks he should be able to do anything and be good at it or he is very upset. He also thinks that everyone else is smarter than him when he is one of the smarter kids in his class. His teacher tells us. I feel he may of always been depressed but am just now seeing it, with him in school. Like many of the others, he has a hard time falling asleep unless its the weekend and we let him stay up later. He also at times has bad stomach aches, to the point hes crying. After reading some of the things people are going through, I'm going to stop giving him the singulair to see if his symptoms go away. Now I'm convinced that thats whats causing it.

After visiting this web site everyday for the past four weeks, I feel the need to share my daughter's (and my families') experience with singulair. My 8 year old daughter was put on singulair aprx. 2 years ago in addition to zyrtec to treat her allergies. Shortly after starting the drug, she developed stomach pain. After a few weeks of chronic pain, I pursued help from our pediatrician. After visits to two different pediatric GI doctors, an allergist (to test for food allergies), and an orthopedic surgeon ( because of sudden leg pain), the results were inconclusive. During this time my daughter also became very sad, angry and fatigued. She also completely lost her appetite and refused to eat much of the time. I attributed all of these symptoms to her stomach pain . In addition, she developed difficult sleep patterns and would often wake-up exhausted in the morning. Over time she also began to have more and more "melt-downs", breaking into crying spells over the smallest provocation or challenge. I recently contacted my daughters pediatrician to discuss what other testing or direction we could take to help my daughter. In the interim of making that contact, a friend told me about this web site. As I read page after page of other parent's experiences, I was in tears. I felt as if I was reading about my own family for the past two years. I say "family" because when one child is living through this kind trauma, everyone in the family is negatively affected in some way. My husband and I felt completely frustrated and unable to help our daughter. Our older children began to resent the great amount of time and energy I spent on behalf of our daughter. My younger daughter who had always looked up to and loved her older sister was sad and confused by her sister's anger and impatience.On March 29th I took my daughter off singulair. Unbelievable. Within 2 days, my daughter's appetite returned. On the second day, she came home from school and requested a corn dog and then some ice cream. She suddenly wanted to eat breakfast again. She started smiling and laughing again. She has suddenly become capable and responsible for doing her homework and chores. She is going to sleep more quickly and waking up happy. The best part is having our daughter back...the sweet, wonderful, happy six year old who I feel like I lost for two years of her life! As a side note-the return call I got from my pediatrician was that he wanted my daughter to see a psychiatrist. That's how close we were to taking another (completely unnecessary) path to helping my daughter. I also recently spoke with my daughter's allergist about our experience. At first he was somewhat dismissive. I asked him to listen to me parent, to parent for just a moment. He seemed to soften and said he would take a second look at singulair and its side effects. I encourage every parent who's child has been so adversely affected by this drug to be proactive. First, please contact the FDA to report your experience. Second, talk to your children's physicians and share, with confidence your experience. Third, share this web site or a similar one with everyone you know. I have been astounded how many children are on singulair just within my own small circle (school, church and play group). I really believe one voice can make a difference. I have to believe that for the sake of all the children still suffering.

Up until today I was unaware of any side effects. I have been taking singulair for about a week and I felt fine, until yesterday. Yesterday, I felt anxious and on the edge. I felt as if I was going to blow up if anyone said anything that I did not like. I was feeling as if my heart was going to beat right through my chest. Then when it was time for me to go to bed, I had trouble falling asleep. I awoke the next morning with vivid memories of nightmares that I had throughout the night. Even after I awoke I felt in intense rage. I called my mom later on in the day and I mentioned to her that I was taking Singulair for my allergies. She told me to stop taking that drug immediately. She told me that she just heard last week that it may cause some people to commit suicide. I'm glad I mentioned that to my mom, if I hadn't I may be worse off. Unfortunately I did feel as if the pills helped my allergies, however at what cost? Possibly my life...

I'm an 18 year old male and I've been taking Singulair for years; I don't even remember when I started taking it. I've had chronic sinusitis my whole life, and use a Singulair 10mg/ Allegra 180mg combo to control it. I never gave it a second thought. From my adolescent years on, I've been able to sleep (if undisturbed) for 15, 16+ hours a night, and have always felt like I was in a fog during everyday life. Getting out of bed has always been a terrible problem for me.

Throughout high school, I became progressively more depressed and apathetic toward school work, to the point where I dropped a number of classes my junior year. Got put on Prozac for a while, it helped a great deal with the depression, and seemed to give me enough energy to get through the week. I discontinued it after a year or so, everything was going okay (aside from mood swings and tiredness- explained away as symptoms of my age/hormones/going to bed too late), and then I went to college.

I had a mild depression that I think most people get upon leaving home for the first time, but the real problem was anxiety; I had a number of anxiety attacks, and decided to transfer to a school closer to home. I started Celexa and therapy- the celexa seems to take the edge off, but I fear its making me even more tired than before.

I've just heard about the whole Singulair controversy, and I am not taking it from here on out. I really hope that this whole ordeal was brought on primarily by the Singulair. After a month or two, I'll repost to report whether the symptoms went away.

I took Singulair for a little over a year. In that time I have quit my job of six years, dropped college classes that I was previously excited about, and generally didn't give a damn any more about anything. My dreams became dark and horribly violent nightmares leaving me shaken throughout the day. I couldn't concentrate and was thinking I should seek professional help. My wife was worried that it was her and I couldn't figure out what my problem was.

About 6 or 7 weeks ago I heard there had been links to mood swings and depression from taking Singulair and immediately stopped taking it. It sounds cloche but it was as if the clouds parted and the sun began to shine again. I have become much more like my old happy and motivated self. My wife has noticed a huge difference as well as my friends and former coworkers. I am still having a little bit of a hard time staying on task but each day gets better and better. I sleep much better and the nightmares have stopped.

I think I'd rather deal with the allergy symptoms rather than take the FDA sanctioned poisons put out by firms like Merck. Their practices are criminally negligent but nothing will probably come of it because the regulatory agencies are in their pockets. It's all about the bottom line profits--public health be damned.

I posted this question in the question section, but wanted to know if anyone else has experienced hair pulling as a side effect. My 10 year old son has been on Singulair for about a year and 3 months ago he started pulling out his eyelashes and eyebrows as well as other body hair ( a disorder known as trichotillomania). He also has been talking about being sad, hating his life, etc. We are worried sick and his self esteem is taking a huge hit due to the hair pulling. He says he is a freak and he hates himself because he can't stop it. We took him off Singulair 2 days ago and are waiting to see if there are improvements in his behavior. Thanks.

I discovered this site last Wednesday morning - without taking the time to list all of the grief I felt reading through the pediatric postings, I will briefly note my 4 year old daughter has been on Singulair for 2 years now. What I now realize is all the behavior issues, night screaming, etc. are so easily dismissed as stages of a toddler. She has suffered (as well as our family) every symptom and behavior listed by parents on this site with the exception of leg cramps.

Our entire family can see the dramatic results since taking her last pill last Tuesday night. The melt downs and tantrums are all but over, she even commented "hey, I listened right away" on the second day without Singulair. She is still having night terrors - I call them that because they are in no way a dream or nightmare, but rather agonizing moments that break our hearts to hear. I hope those will soon go away as well so her sleep pattern results in a restful night.

Am I angry that we have all suffered for 2 years only to find we have been basically poisoning her? Am I angry that for the 2 years her dad and I have sunk pretty low, feeling inadequate as a parent to teach and discipline our child? Am I angry that after 20 years of marriage, raising a great 16 year old in the midst of all this, we were to the point of the ADD, bipolar, etc. theory that would have been misdiagnosed? Heck no, we are all so thankful to have come across this site and are so giddy and excited to be happy again.

What I am angry about is this - when I called our pediatrician last Wednesday and relayed what I had seen on the Merck website for side effects added in recent months she had not heard this information and asked where I saw it. At that point I had not seen this site. I asked her how is it the well dressed pharmaceutical reps come in with doughnuts, exotic trips, etc. to market a drug with "ABC" treatments and "XYZ" side effects, continue to market the drug and never update the doctors when original selling points are altered - ie; new side effects.

The FDA website is troubling for two reasons: Merck is in charge of their own investigation regarding recent complaints and the FDA expects this to take 9 months. Gee, who gets to investigate themself? Secondly, in February the site notes the FDA and Merck are trying to find the best way to communicate the concerns being investigated to prescribes and patients. HELLO - we live in a world of real time, instant communication methods, two examples being the United States Postal Service and an internet connection.

Today is April 30 - a full two months after "trying to decide how to pass this information on" and my doctor, nor my pharmacist have received any information. Apparantly since we missed the story and coverage on Dateline we are out of luck.

I plan to start from ground zero to get our voices heard to change the way, or the law if you will, to implement an immediate communication link between the FDA and prescribes when an investigation such as this has been initiated. I realize Singulair has most likely benefited more humans than it has destroyed while on the drug and the FDA would have to clearly not communicate "panic". However, when a drug is used for pediatric treatments we need information quickly to assess on behalf of our children. In my case, since my daughter had been on the drug since 2 years old, I do not know what her "normal behavior" should be as that is the age they start to develop and show personality. Additionally, when enclosed prescribing information is updated with a prescription -MARK IT IN RED, "UPDATED INFORMATION". I read every ounce of information that accompanies a new prescription for any family member. I would NOT, however read the information every 30 days for an ongoing, long term prescription over the course of 2 years.

I am looking for anyone that may have started contact with a congressional representative or otherwise to change the communication to our doctors. Please note - I am in no way interested in any legal action regarding Singulair and our nightmare. We are moving forward and do not wish to live the nightmare one moment more. I simply want to see our doctors and pharmacists have vital information as it happens.

Thank you to all for sharing your experiences - I truly believe it is changing lives and making a difference. I am personally telling everyone I know about what is happening with our child and all of yours. Andy by the way, by telling one of my long time friends our amazing discovery, she realized she had been suffering from depression for some time and chalked it up to various things going on in her life. She had her last Singulair last week and feels tremendous! So keep the word going!

I am a 47 year old male who took 3 days of 10mg singulair ending April the 16th. On the 4th day, I was walking around in a national chain store and started getting severe numbness and tingling in my arms and legs.
According to the info. pamphlet that comes with the drug, this can be a serious adverse reaction.
About 13 days later, I still get episodes of tingling and numbness in different areas of my arms and legs, and now, some areas on my face. My family doctor says there is nothing to be done about it, and my allergist says I may need to see a neurologist. I think the doctors need to go see a neurologist and have their heads examined for giving us this garbage to take in the first place!
Never had any of these problems until a took singulair! Hope these side effects aren't permanent!
Good Luck to you all, and may all of us get healthy again real soon!

I don't know if my 1 1 /2 year old son's being diagnosed with low igG and low IgA have anything to do with singular. He just got off it 2 weeks ago, had been on it a year. He was tested for allergies everything was negative, but tested very high positive to gliadin IgG (95.5), and positive to gliadin IgA (14.8). Is this related???? HELP!!!!!! The GI Dr want to do an endoscopy on Friday May 2. Any help, I don't want my son under anesthesia unnecessarily..................

(A divorced father)
My son has been on Singulair now 5 years and I am in the middle of fighting to get him off. My son is now 7 years old and has been diagnosed with allergies (no test have been done which I find very odd), which leads to a case of mild asthma. This past weekend his mother forgot his Singular on Friday so I could not give him any till the next day, where we met at his soccer game. Saturday night I gave him his usual pill and thankfully due to his exhaustion from playing out side all day he went to sleep in 10 min. vs 3 hrs later which is the norm since Singulair seems to jack him up.
He also has red puffiness under his eyes - most likely allergies.
Seems depressed - just driving down the road and I look at him in the rear view mirror and he just sits and stares into space. When I ask what's wrong he either says nothing or I am tired.
He will try to tell a story or think for himself and just stops mid sentence and says " never mind I am just confused"
He will be having fun one moment and just starts crying or gets depressed.
He was throwing a ball in the house (yes I know) and accidentally knocked a glass over breaking it - he went running to his room, crawled under his bed and sobbed profusely for over 30 min.
He has a hard time doing / focusing on homework - becomes bored very easily.
Does not want to go outside. I will take him to allot of cultural events/ hands on or participation events - he will not try anything. He is unsure and will not come out of his box so to speak.
I spoke with his doctor who was reluctant to take him off, but then agreed that if it was OK with the ex, to take him off for a week to see what happens.
The fun part: My ex is convinced that since he has been on Singulair for 5 years he is fine and does not need to come off it.

1.) Son is diagnosed with mild asthma or allergy induced asthma.
He has never had an allergy test done and has not had a lung function test in over a year.

2.) It is documented that our son has four outbreaks a year. (sounds like the changing of the seasons) but is given Singulair all year round and the dosage has also been increased.

3.) Since the court order, ordered my ex to enroll our son in sports (she would not let him play anything) he does not wheeze or cough uncontrollably.

4.) Since I had to battle to get our son on my insurance I have cut her control issues off a little, but she is refusing to take him off Singular just for a week to see how he reacts. Although I do agree that he should have some form of allergies medicine.

5.) When I found out about the side effects of Singulair, I also found that his doctor was getting ready to add two other allergy medicines to his portfolio - totaling 3 different meds.

I see our sons behavior getting worse and I watch him turn into something he is not and with a controlling individual not believing anything about the side effects it looks like I will have to rely on the medical system to prove my point. I do believe he needs to be accurately tested for allergies and given a regularly lung function test but most of all since he is now on my insurance, a second opinion and a 3rd to narrow down what the situation is and an alternative medical procedure that is fit for the symptoms.

My son is 5 years old. He was put on Singulair in August following a case of pnemonia. He has asthma. I found it worked well since I was barely using inhalers anymore. His eczema was even getting better. So I was happy with the medication. He also seemed to be getting more agitated with us. At least three times a day he would have an outburst towards his brother or us, like he was going to punch or hit us. Then I would say "why are you mad at me" and he would say "I'm not mad, I'm frustrated" and then burst in tears. He was getting a lot of time outs. Then two months ago he started saying "this is not a good day" or "this is a sad day". I was wondering if singulair was to blame, but it wasn't until I heard concerns from other moms. I took him off it as an experiment and noticed the next day was without his outbursts. Then I just never gave him anymore...and I am relieved to say he is as "normal" as I remember him before Singulair!!! He also was unable to get to sleep easily on Singulair, sometimes 1, 2 and even three hours to get to sleep. Now he is out in 20 minutes if not less. I haven't talked to the Doctor yet. I have noticed his eczema is flaring up again and he has used his inhaler this week (although he has a cold). I think I can deal with that without Singulair and the problems I am suspicious come from it's use.

My 5 year old son was taking Singulair for about 2 years when I came upon this site. I immediately called his allergist and got no answers, so I decided to take him off of it. Within 24 hours I noticed a big difference. He use to not sleep. He would be up all night. he uncontrollable outbursts at school, and home stopped. He is now the sweet boy I remember. I really think he was over medicated. He takes Zyrtec in th morning and was taking Singulair at night. I am appalled at the fact that doctors are over medicating our children.

Thank you for this site. I now can love and hug my child agan.

My 13 yr old daughter was put on Singulair along with Asmanex and Clarinex for her asthma about 6 weeks ago. Everything seemed to be going very well at first and her symptoms were starting to get controlled. I started noticing after about 3 to 4 weeks that her temper and attitude were getting much worse. Anyone with children this age knows what I mean but this was like a 180 degree turn for her. Her actions were becoming totally out of character. Before I knew it she would cry and get highly upset over the least little thing. Week 5 came around and things totally bottomed out. She came home from school and WAS NOT HERSELF. Made comments about how she hated her life and it was not worth living. Later that evening we had a big argument because I was telling her nothing was worth saying that. She went totally out of control and I had to physically restrain her to calm her down. It appeared everything was better so she went to her room. I went down to check on her and she calmly told me that she had taken advil and tylenol pm and things would be better for her forever now. We went to the ER where they made us wait for at least an hour, then finally took her back. She had to drink two cups of charcoal and was poked and prodded repeatedly. They did a catheter to get a urine sample. She was very cooperative but also was in a complete daze so who knows. The poor child couldn't even lift her head up when she started the vomiting to get rid of the drugs. It was very upsetting and sad. Her heart rate and blood pressure went very low and I really thought in the back of my mind that this was it. Finally, after several hours she started coming out of it and they sent us home. The next evening when she was starting to really come around she proceeded to tell me how she had been seeing a man walking around in her bedroom at night and she was afraid to go down there. Breaking down and crying telling me about all of the horrible nightmares she had been having recently and didn't know why. I thought what am I dealing with here? This just isn't her. Three days ago I heard about singulair in the news and looked it up on the internet. OH MY GOD THIS SOUNDED LIKE US!!!!! I immediately had her stop taking it and the next day phoned her asthma specialist who agreed she should stop now. We are going to watch her for two weeks and see if any symptoms return and then decide if she needs something else or will be fine on just the Asmanex. As a side note, she also mentioned being unable to concentrate in school (unable to do even the simplest math problems) and that her brain felt confused or like something was missing. She said this had been bothering her for several weeks. I know it was this drug. They really need to take this off the market NOW and stop flirting with disaster. The only reason I posted this was to let others know they are not alone.

Unfortunately my lawyer told me that they do not want to take our case because of the lack of evidence that Singulair has caused our daughters problems. :(

Does anyone out there have a pending class action lawsuit that We may be able to get in on? I have tons of proof that Singulair has caused our daughters problems and loss of almost 5 years of her elementary school career!

My phone number is *** and my email is ****** if You email me please put "Singulair" in Your subject line so I know it pertains to this posting.

Thank You in advance,
Chuck & Brenda
Jamestown New York

Hi, I am a mother of 6. They are 11,9,7,4,and twins 2 1/2. So nothing surprises me as far as kids. I have been through it all. My 7 year old had been taking singulair for allergies and ear pain, for over a year. Did my doctor once ask me about any of the side effect, NO!! This is not ok. My son suffered, decrease appetite, weakness, fatigue, mood swings, irritability, fears of being alone, scary dreams, anger, bone and joint pains. Before he was a loving kid (who had his moments)!!! I had no idea the singulair was causing all these destructive side effects. I just thought this is a phase he is going through, he will soon get over it. Finally I took him to his ped. and we did blood work and x rays. I told her something was wrong with him, he has not been himself over the past 6-8 months. This is one reason why I never suspected his singulair, it did not show up immediately. All of his test came back fine. I just happened to look at the side effects of this medicine. I almost died!!! Every single thing that this poor child has suffered from was on this list. Then more, I found this page and other mothers have had the same experience. I was just amazed that this has happened to so many. I was relieved that my son was normal. He has been off singulair for 6 days now (he doesn't know why I took him off it) . But you would not believe the change. It is AMAZING!!! In only 3 days, I started to see change in his anger. You would not ever in a life time believe that a medication can do this. I have been poisoning my son for a year. I think that Merck should take some of that 4.3 BILLION dollars and do some better research!!!! Concerned citizen you are right on. I have read many pages of this forum and I think you are doing a good job researching this. Maybe Merck should hire you as one of there "experienced personal". It just makes me seriously sick to see that the medical field is not seeing this problem!!!

I am seeing a huge link between ADHD and this drug. My son has been off for about 3 weeks but we are still using the ADHD meds for now. I am going to wait until Summer so he does not experience any problems at school. He is definitely different and says he no longer wants to hurt himself. I am anxious to see what happens with the ADHD. Good Luck to all of you!

Hello to everyone, I just came home from a parent teacher conference for my son who is 7 yrs. old, and heard the same old thing, "he is restless, impulsive and has a short attention span". He has been taking Singulair for about 3 yrs.. Since he has started school I have had these complaints and have also been told he displays symptoms of ADHD, which ironically has been for the last 3 years. Like any parent, I question" if I am doing something wrong with my parenting, is his diet good, etc. etc.", I am also a nurse, I realize that medications are needed and beneficial in some circumstances, however I firmly believe and was taught in nursing school that medication is last resort. That being said, I have been very adament about NOT giving my son ADHD medication after doing alot of research on the different meds and their side effects. So, we started him on all natural vitamins, changed his diet some ( kids got to have candy once in a while) and started a more structured routine( the best we can since we both work) and also enrolled him in Sylvan. The teacher says there is a 50% improvement but he is still impulsive and still does not pay attention like he "COULD", again suggesting he needs ADHD meds. I came home in tears and started to do more research online to see what else can I do besides putting him on psych meds?....Then I came accross this site, I just want to cry after reading all these posts. I wonder, could this be his problem, the Singulair?.. About a year ago he use to get up in the middle of the night, 5 out of 7 complaining of nightmares, hearing things at times, headaches, decreased appetite, stomach upset, all AT TIMES, not all the time so I never thought alot about side effects of Singulair. When the school started complaining I did look at side effects of Singulair and seen HYPERACTIVITY and mentioned it to his pediatrician and she shrugged it off saying she never heard of it being a problem. She's a great MD so I listened to her because his asthma was bad when he was younger and it is now under control. But then I think maybe he is outgrowing the asthma. I am afraid to stop Singulair and him have breathing problems again but then I can't help this strong feeling in my heart that says this may have been his problem with everything else all along. We are going to stop the Singulair tonight and see what happens. If anyone else has a child with asthma any suggestions for alternative treatment would be appreciated. I already know what's out there but sometimes it's nice to hear from another parent going through similar situs. Thanks for reading, Bobbie

I've never written on a blog in my life, and now that I've just read this, my stomach is doing flip flops and my blood is runnung cold. I have an 11 year old son and a 9 year old daughter. They have both been on singulair for quite a few years. My son has been on ADHD meds now since about a year and a half after starting Singulair because we tried to avoid them. Every few weeks he tells me he has this empty feeling inside him that makes him really sad and he doesn't know what it is. It just feels empty. I'll usually read with him or play a game or walk our dog with him to help him feel better.
As for my daughter, she exhibits all of the symptoms I have read about. She talks about life being terrible( trust me, she has it pretty good), she has been diagnosed with an anxiety disorder, OCD and Tourette Syndrome. Every psychiatric medication we have tried has made her worse. She was always a confident, outgoing little girl, and then she just changed. She's had stomach aches, which the docs always thought were in her head. She gets headaches. She is extremely sensitive, won't let me even brush her hair or touch her. She has extreme mood swings and gets upset over the most miniscule things, then writes about them, even saying she realizes her anger was too much for what the situation was! I will stop Singulair immediately and see what happens. What a miracle it would be if all of their symptoms disappeared.

I posted last week regarding my son's experiences with Singulair. He continues to become a significantly new and improved version of himself since we took him off. It is almost like having a brand new son. Since he was on Singulair for so many years, from age 5 to 10, I am pleasantly surprised every day by what a great kid we actually have!! Anyway, I just finished reporting our experiences on the FDA website. I hope it helps!

(www.fda.gov/medwatch/report/consumer/consumer.htm)

My M.D had prescribed Singulair approximately 3 months ago. I was extremely hesitant to take it and did research online before i made my final decision. I am/was fortunate not to have many of the side effects as stated in the other postings. Upon filing the second refill, I noticed I was putting on weight. My eating habits and daily routine has not changed prior to taking Singular or during taking the course of taking the pill. I started to become very concerned and I too found this site. I can tell you for a fact, that there is a very definite side effect of weight gain. I have gained weight all over my body, not only limited to the stomach area. As a result, I too, will NOT continue taking this pill, not only because of the weight gain, but in addition to the fact that my allergies are still bothering me. I am going to try Zyrtec, which is now an over- the -counter allergy pill. Zyrtec, until last year, was by prescription only. In final, to all those that are complaining of weight gain and various serious side effects, you are not crazy, The symptoms you are experiencing are real. Good luck to all of you.

I am a mother of four children (21, 19, 15 and 15) who have varying degrees of asthma and allergy. All of them have some degree of ADHD as well. The oldest took Singulair from grades 7 to 12. It was great for his allergy, but he had a depression which was attributed to his ADHD.

The second is still taking Singulair. She is highly asthmatic and it has been beneficial for her. The severity of her asthma went down to the controllable range, and her migraines (suffered since second grade) significantly decreased (documented side effect).

The last two, identical twins, began taking Singulair four years ago when they developed asthma as they entered puberty. They became oppositional, defiant, prone to rages, and curiously not hustling hard enough at their sports. Prior to this, they were solid, dependable students, with moments of inspiration - and aggressive athletes, leaders at their sports. We always thought the problems were related to puberty and the ADHD. More and more ADHD meds were applied. No more weekends off the meds - because our house would be destroyed.

As 2008 began, my own allergies flared. When the doc offered Singulair, I looked forward to feeling better. Within 48 hours, I could breathe at night, and the tightness in my chest went away. Even my allergic dermatitis improved.

Then a weird thing happened. I got lazy. I heard myself saying things like, "I don't care if I'm fat." I stopped doing my evening chores. I stopped pursuing my hobbies. I almost stopped making dinner. I was wondering why I didn't care, but I didn't care enough to pursue that, either.

Then it got worse. I couldn't handle the least criticism. I was in tears over almost anything. Within a few days, I was trying to find a way to leave my family. I just didn't care about anything any more.

The water-cooler crowd at work was chatting about the news reports about Singulair and suicide. I started to wonder: gee, doesn't depression preceed suicide? Maybe this hopeless feeling I had was related to the Singulair.

So I stopped taking it. 48 hours later, I started to laugh at jokes again. Five days later, I cleaned my kitchen. Now it's been three weeks and I'm back at my hobbies and loving life.

Two weeks ago, I realized that the never-ending laziness and argumentation we've been getting from our twins might be related to Singulair. I checked with the ADHD doc, and their general doc, and got the go-ahead to discontinue the medicine (although not both of them at once). I did this without telling anyone: not the twins, not my husband, no one.

Forty-eight hours after the first kid had stopped taking the Singulair, I came home to a grinning, hugging, 15 year old, who sat me down at the kitchen table to explain the strategy he'd designed to study for his upcoming exams. I was speechless and numb. I didn't tell anyone that he was no longer taking the Singulair (he takes a variety of vitamins and ADHD meds every day). The next day, my husband called me excitedly: the kid was cooperating with him! He didn't know what to make of it. I kept him in the dark for a few more days.

The other twin had been on a lower dose (5mg rather than 10 mg). I stopped his medication as well. The change in him has been more gradual.

Neither of them takes ADHD medicine now on non-school days. They are happy and cooperative. We ask ONCE for chores. There are still a few arguments and stormy moods - but I no longer wonder what's going to get broken next. And they seem to love working as hard as possible at their sports.

The good news is, we all feel better. The bad news is -- how did this happen? How can it be that such an obvious side effect was missed?

It's not like the effect of montelukast on the brain is unexplored. Try searching on "montelukast brain ischemia" - there are many studies that show that montelukast (Singulair) dramatically reduces brain swelling. What does it do for an uninjured brain? Does it dehydrate it? Deprive it of nutrition? If I had to characterize the behavior I saw in my twins, it's this: they acted the way hypoglycemic patients do, when they're late for their next snack. REALLY GRUMPY.

Or do some research on migraines and Singulair. There's an effect there, too. Many asthma patients on Singulair report that their migraines improve.

So the drug clearly affects the brain, and Merck's position that Singulair doesn't cause suicidal ideation is almost irrelevant. The fact is, montelukast has a significant, often-studied effect in the brain. That effect is not fully understood.

In our house, the effect of montelukast on the brain has been significant. We have dragged two kids to many psychiatric evaluations. We've spent hours and hours with teachers and principals and counselors, trying to understand why they just won't get their work done. We've used every performance-management trick in the books to get them to work - without much benefit. The kids have swallowed an awful lot of stimulant medication because it was the only thing that controlled their rages. Who knows what their teachers think of them - are they forever branded as the lazy kids? And we are lucky. From this forum, I've learned that it could have been a lot worse.

I have been Singulair-free for 11 days now. I do not entertain any more suicidal thoughts, I feel MUCH happier just generally. I have cried, but haven't felt really low, just sad, normal-sad. I do have more difficulty breathing and tightness in my chest, but I am looking into adopting an anti-inflammatory diet. I have exercised more since stopping the Singulair, so I hope that will help long term with my lung function. I would definitely say I would rather feel some tightness in my chest or breathlessness going up stairs than intense sadness and irrational suicidal ideations. This life is much better than the one I had two weeks ago, and I know it's the same life, nothing has changed, just my perspective. I wonder if taking drugs off the market is going to be like putting up stop signs or traffic lights - we have to wait for a significant number of accidents before that move would be warranted. I really can't believe that all those years I thought it was me. I am a whole new person psychologically and it is because of an asthma medicine that is approved for KIDS! Amazing.

Alright. After observing my daughter for two full weeks after discontinuing Singulair, I have decided to share our story.

Our daughter started taking Singulair last August (2007) to relieve her allergy symptoms. I'd like to add she is an identical twin, whose sister did not need to take the medication, for she had mild allergy symptoms that were easily relieved by taking Allegra. So we clearly have a side-by-side case study where one twin took the Singulair and the other did not. About two weeks later we noticed changes in her behavior and thought it was due to the new school routine and changes, etc. Then she started not eating, and when she did eat, she ate very little. Both girls are in a select soccer league are physically active 4-5 times a week.

Long story short - she stopped eating, lost weight, stopped growing and is now 2.5 inches shorter and 15 lbs. lighter than her identical twin. They are fifth graders, I might add, so 15 lbs is ALOT of weight at their age. She was withdrawn, known to have deep depressive episodes, reacted adversely to everything and, in general, wasn't acting herself since last August. She was not enjoying life at all.

She is usually a quick-witted child, one with a sunny disposition and who interacts with others very well. She is joy packaged in a colorful bottle, ready to share her thoughts with you.

We took her to her pediatrician, a nutritionist, a psychologist and all said she was clearly depressed and that is what led to her changes in eating. No kidding, I thought. But why? What has happened that could have changed her so drastically?

I had never felt so far away from my child as I had with her during this time period. We are a close family and we pride ourselves on being able to freely express how we feel.

My dear mother-in-law saw that the FDA was probing the side-effects of Singulair with children and she mentioned it to me, because she knew that is what my daughter was taking was taking. I never thought about the connection, because I take Singulair. I will add I also take an antidepressant and have made an appointment with my doctor to discuss all of this.

After talking with our pharmacist and getting an exact date as to when she started taking it, I called her pediatrician and discussed it with him. We had not been to him since October, because we took her to everyone else (psychologist, etc), so he had not known exactly what was going on with her mental health. He did, however write in his notes (and told me when I called), "Discontinue Singulair if symptoms persist." Hmmmm. Exactly why I wasn't told this from the beginning, I don't know and am very bothered knowing he wrote that on her chart.

Well, after taking her off it two weeks ago she is now back to her happy, connecting and eating self. People (her father, twin, and I included) noticed a change in three days from stopping use of Singulair.

She has changed IMMENSELY since getting off the Singulair that it has been easy to pinpoint her taking that medication as the reason she has been absolutely miserable for the past SEVEN MONTHS. I thank God it wasn't longer and that she didn't suffer any longer than she already did, but it was a true hell to watch her go through what she did and to watch her decline and to not know (professionals included) what to do. Words diminish how we felt and how we feel now after having her back.

So there you have a side-by-side comparison. One identical twin thrived while NOT taking Singulair and the twin who did take it suffered terribly, physically and mentally, while she was taking it.

The allergy relief she experienced was clearly not worth the internal suffering she endured while taking Singulair. I wish we could turn back time and give her those seven months back.

The Merck site doesn't direct link. Read the information for the General Practitioner.

http://www.singulair.com/montelukast_sodium/singulair/consumer/index.jsp

Previously posted 8 year old son w/ suicidal ideation and depression...I'm seeing comments about "inattentive." I've been saying my son is ADD for years....How many of you saw this possible side effect? Off of Singulair for 14 days now....behavior unbelievably improved.

Ok I haven't been following along for several days so I may have missed some info. But what I'm wanting to know is if anyone out there has had the their child off singular for several months and had the attitude problem get worse rather than better. I don't know what is going on with my son but he has been off the meds for almost 7 months and within the last month turned very mean and ill-tempered. We would get this reaction sometimes while he was on the medicine but now it's 10X worse. Could be totally unrelated, but I thought I'd through it out there just to see.

Has anyone heard anything about a class action suit ? Or is this too early since Merck has 9 months to come back with more information????
Thanks.

Hi everyone! I am one of the moms who has been posting here after taking my son off of the singulair.. He is doing better every day! Someone at his school commented to me this morning about what a happy child he is (as he was giving the principal a big "Good morning!". I'm also posting the link for the support board that was created the other day. The link may not work when you click on it but you can copy and paste it. If you still have a problem you can email me at staceynlilphil@yahoo.com and I will send you an invite. All the research posts that are being posted will eventually have links to the posts so they can be easily found for future reference.
http://health.groups.yahoo.com/group/Singulair_side_effects_friends/

Hi I am one of the Mom's who's child was affected by this drug.
After seeing so many similar stories and people asking what we can do,
I decided to create a support board. We can share info, stories and ideas.
If you have not already joined please copy and paste the following link
http://health.groups.yahoo.com/group/Singulair_side_effects_friends/
If you have any problem with the link you can email me at
staceynlilphil@yahoo.com
Wishing everyone happy days again!
Stacey

After reading the other posts, I was flabbergasted at the side effects posted. My sons 8 and 10 have been on this medication for two plus years after seeing a specialist for asthma and allergies. During that time, my younger son was sent to "family therapy" for behavioral problems at school. Bedwetting and nightmares began for both boys, as well as stomach aches and a huge weight increase. They are both active and in sports. Upon reading this information on your post, I was floored when I read another child said "My brain makes me do it". My youngest son says that all the time in response to bad behavior and I never understood why he would say such a thing. After talking to him and explaining that I was taking him off the meds immediately, my older son overheard the conversation and said he wanted to go off them as well right away. He explained he's been sad since taking them and didn't know why as there is nothing to be sad about. We are a close knit family who spends all their time together. Singulair has helped my oldest son's asthma, but I'm so upset at the other side effects and not having this information from the FDA. I've spend thousands of dollars in family therapy only to find out it's the drug my physican prescribes that causes the problem. Do not take Singulair!

The link doesn't work for some reason from the main post but if you go to my reply on the original post for link it works there. Strange! If you would like an invite please email me at staceynlilphil@yahoo.com and just put singulair group in subject.

http://health.groups.yahoo.com/group/Singulair_side_effects_friends/

I got the ok to post the link so if you would like to join a group to support each other you can join at

http://health.groups.yahoo.com/group/Singulair_side_effects_friends/

copy and paste it in your browser and you can join

My son 10, has been on Singulair since he was 4 yrs old for Asthma and allergies. His last dose was 3/26/08. He has always been my emotional child, he is 2yrs older than this younger brother. Some of his side effects included headaches, stomaches, leg cramps, emotional breakdowns, major mood swings, crying outbursts over small situations, night sweats, lack of motivation, weight gain, ADHD, wishing he were dead and the list goes on. His younger brother has always been involved in sports but he was always too afraid he would get hurt. This medication has robbed my 10 yr old son from 6 yrs of his childhood. Since he has been off Singulair he feels motivated and looks forward to joining the football team his younger brother plays for. I look forward to meeting this new young man who for so long has been hiding behind this so called allergy medicine. I am so thankful to know that my son can look forward to a bright future without these side effects. God Bless you all who are going through this as well.

I was prescribed Singulair last winter after a severe allergic reaction. I have taken it throughout the winter with no noticeable side effects. For the past several days, however, as the pollen count has risen, I have been experiencing strange symptoms. I feel a bizarre pressure in my head, and a ringing of sorts in my ears. Also, I can't sleep - I feel exhausted, and try to go to sleep, but I wind up feeling agitated and have to get up out of bed.

i just started taking singulair 3 weeks ago and it works great for my asthma but i did notice mood changes and weird felling about myself also shaky i just made appointment with my doctor to talk about this but i want to find out any more info or helpful stuff i should know please email me ****** --junior santa monica,California

We have the group called Americas Watchdog, we are taking on Bayer for the heart medication called Trasylol, and we would be very interested in hearing from anyone with problems related to Singulair. My e-mail is *******