Singulair side effects symptoms and conditions

My son now age nine went off Singulair two years ago. He was one it for about a year and was having terrible nightmares. I did not realize why until he went off of it. A year later the doctor put him back on it. I forgot and was not quite sure it was the Singulair so we tried again. About 2 months later it started again. I quickly remembered and took him off. When I asked the doctor I was told it is a rare side effect. I am happy to see this site so others know and can become aware. My daughter however has been on it for years and had done well. We are trying to take her off though because she seems very nervous and anxious (more than typical). I want to see if the medicine makes a difference.

My 6 year old son was on Singulair for 2 months for viral induced asthma. After about 2 weeks we started noticing that angry tears were pouring out of him about minor problems - his brother didn't want to want to watch the same TV show as him, etc. By 2 weeks later he had started having daily major meltdowns, yelling that he didn't love us and never had, refusing all physical affection and calling himself a loser. This was behavior we had never seen from him before. After a month of this, we were really beginning to think that he either had a mental illness or was having a nervous breakdown. There was a wild look in his eye, and it was obvious that his behavior was confusing him, too, but he was powerless to stop it. My husband had the insight to check the Singulair side-effects the evening of a particularly bad day and we pulled him off immediately. The next day I talked to an acquaintance whose normally laid back and happy 7 year old had started saying he wished he were dead after 3 months on Singulair!

The "edge" my son had to him while on Singulair that made us think of mental illness went away almost immediately after taking him off Singulair. He was still quite irritable and quick to tears for two more weeks, but right now he's been off 3 weeks and I think we have our son back.

My daughter's doctor put her on Singulair just about a week ago. She had a persistent barking cough that would not go away, even after 3 weeks on Albuterol. Because the pill was so expensive (even WITH insurance it was $120.00) and I could not afford it, her doctor gave me free samples. I gave it to her for the first time last night. I was telling a friend of mine about how nice it was that my daughter's doctor gave me free samples and what a blessing it was. When I told her what pill it was she started telling me about what happened to some of her kids in her class (she's a teacher). I was surprised. She told me she didn't want to scare me, she just wanted to make me aware. I didn't get scared, but I certainly wanted to find out if what she was telling me was common or just rare in a few cases. I am one of those people that will ask advice of other moms, etc., but ultimately do my own research and find out for myself to confirm any suspicions. I know some moms who freak out over every little thing and take someone's word for it, even without doing their own research. I am not one of those mom's. So I Googled "singulair side effects" and found this site. I could not believe that everything my friend had told me has also been experienced by so many others on this site. Needless to say, I will NOT be giving her Singulair anymore. I am just so thankful that I had someone tell me about it BEFORE she had to experience some of the terrible things that other children have had to experience. It is unacceptable that this drug is allowed to be prescribed, especially for young children. I am going to look into a more natural way to help ease her sniffles and cough.

If you google the words fda singulair side effects......the third result down is a link to the FDA's consumer information page on Singulair.......the information has NOT been updated since 2001. Why have they not updated this since 2001?

I will never be sure Singulair changed my daughter because she is a very complex little girl. I just know that when we made some changes that included taking her off Singulair she has done nothing but improve!

My daughter is adopted, she was in Foster Care, she is a very vulnerable little girl. She has been on singulair since the age of 2. We needed to add an anti psychotic to her list of med's some time last year, because she was threatening to kill herself at 8 years old. She often complained of having a bad man in her head that would tell her to do bad things. When we heard about singulair side effects it just felt too coincidental. We made a decision to take her off ALL meds. Since that time she has done nothing but improve she is happy and working hard, the bad man is gone and everyone who knows her says she is a different child. Again we changed many things in her life I don't think we will ever know if singulair is the true cause of her behavior but we aren't taking any chances.

My 9 1/2 yr old son started Singulair in July 2004 when he was 5 yrs old.Looking back now we realize that he started showing signs immediately. We only gave him Singulair in the fall when he had the most trouble with his asthma. His asthma was under control immediately but was not worth the damage that was done. He complained of pains in his legs that I just thought was growing pains. He would sometimes run a fever with no other symptoms of being sick and then the fever would go away. He would also feel like he always had to go to the bathroom, especially after he went to bed. I gave him Singulair at 7pm before he went to bed. The biggest change we noticed in him was the signs of attention deficit. We first noticed that he kept getting out of his seat at dinner time. No matter how many times we told him to sit down he would sit down and then a little while later he would get right back up. We realized after a while that he wasn't doing it to be defient he just couldn't help himself. I asked his Kindergarten teacher if he had trouble sitting in his seat or with attention but she didn't think he was any worse than any of the other Kindergarten kids. In 1st grade, at the beginning of the year, his teacher said he had trouble keeping his attention but then by January she said he was a different kid. We usually stopped giving him Singulair in December. The same thing happened with his 2nd grade teacher. I question his allergist in the fall of 2nd grade but his allergist said Singulair wasn't the cause for his ADHD symptoms. When his 3rd grade teacher contacted us in Oct 07 with the same complaints I realized that it must be the Singulair. I looked online for Singulair side effects and came across this website. I couldn't believe it. I was so disappointed in myself for not doing it sooner but we took him off Singulair immediately. I called his allergist the next morning and questioned him for a second time and he told me that sometimes parents of kids with ADHD just look for something to blame for their childs behavior. I couldn't believe he said it to me. We made an appointment at Children's Hospital Boston to have him evaluated for ADHD just in case but couldn't get an appointment until Feb 08. When we had him evaluated he had been off Singulair for over 3 months. The neurologist said he did not have ADHD. When I asked him if he thought Singulair could have been to blame for the symptoms he was showing and he said there was "compelling evidence" that showed Singulair does cause ADHD symptoms in some children. We were happy that he did not have ADHD but were so sad that we gave him this medicine for 3 years without realizing what damage it was doing. My biggest fear now is that there may be long term damage. All his symptoms have gone away but sometimes he still seems a little out of it and I don't know if it is just his age or his personality or if it might still be some long term effect from the Singulair. He is such a sweet, loving, caring boy and I hope that I didn't do any long term damage by giving his this horrible medicine. I hope that something will be done soon to get this medicine off the market. My prayers go out to all the families who lost children on this medicine. I can't even imagine the pain you are feeling but I thank you for getting your story out and saving other children! I am thankful that I was able to get informed by this website because God knows my allergist wasn't looking out for my son! His asthma has been under control since being off Singulair and just seems like a happier child over all!
Thank you!

IS THIS SITE AN ANSWER TO OUR PRAYERS?

A little while ago less than two hours, after a very emotional, difficult battle with my daughter, we had yet another heart to heart to try to do better. At the end of our talk WE PRAYED for guidance to know how to help the situation. So I'm here looking for a link to her behavior fron the ADHD medication and I see someone had posted about Singulair side effects. I was floored! I have never thought that Singulair was not a safe drug. No doctor has ever mentioned any negative side effects to me regarding it. The more I'm reading about it the more in shock I am. Have I and her doctors been doing this to my daughter? My 12 1/2 yo daughter has been on Singulair for probably 10 years. She was a 28 week preemie and had severe lung issues so it was a needed medication. Her behavior has worsened the older she has gotten. Because of mostly anger issues and problems in school about a year ago she was started on ADHD medications. We are currently trying to find "the right one" . I feel so awful. Could all her misery have been caused by this little pill that was suppose to help her? Why has her pulmonoligist continued to give it to her although she has not had any serious asthma problems in years? I think I will stop all medications and see what happens. My daughter has also been on amytriptylin for about six months also for severe migraines. What do you think? Should I stop all of them cold turkey or gradually decrease one at a time? I would GREATLY appreciate any advise.
Thank you

Has anyone experienced difficulty swallowing solid foods? My son has been on it for 2-3 years and this issue has just developed. Not sure if it has to do with the Singulair or not. He's had an Upper GI and no physical problems show up. He is 11 years old and the allergist says the mood swings are due to his age, not the medicine. He has been really down and cries at the strangest things.

My daughter who just turn 7 has been on and off Zyrtec for the past 6 months. This last time it finally clicked... She was on it for about 3-4 weeks and I notice her mood changed and she was now very angry at anything and started hitting her sibblings and throwing things at me out of anger. She also was waking up at night either with bad dreams, or couldn't sleep. My husband and I realized that this all started about the time we put her back on Zyrtec. Two days ago, I took her off it and the next day she was an "Angel" compared to before. WOW what a difference. I did notice today (day two) she was sneezing more and didn't feel as well physically. So we are not out woods yet.

She also has been taking Singular for several years and I have been reading more about that medicine as well. I am not sure if needs to be taken off that yet, and will do an experiment. The timing isn't the best since school starts in just two weeks, but it might be worth it to have a happy child again.

On a side note, last year in school, they diagnosed her as having social anxiety. She is "extremely" shy and closed off in school. It would take her hours to do her homework which should have taken about 30 min. I am curious if stopping singular would help clear her head and make her less anxious. (She was on Zyrtec as well during that time).

This would be such an answer to prayer if it works. My two sons are so much happier than my daughter and I always wondered why. This may be the answer!

I am finally writing after reading these posts since the end of April. That is when I took my 11 year old son off singulair, in an act of desperation. He has been on singulair on and off for about five years for seasonal allergies. He started again in mid-March so it could get into his system, before the allergies started. Immediately thereafter his behavior changed. He was arguing on a daily basis. He would hit, kick or trip me when he was angry. He was starting to destroy things in anger. He seemed to be fueled by anger. It was affecting the whole family. He was starting fights with his younger brother, my husband's heart was palpitating and I was crying every day. I heard about Singulair side effects and looked it up. I saw that it caused behavioral changes and out of desperation, took him off, not knowing what to expect. We had three days of total peace, then on the fourth day another outburst. Then my son told me he had taken a singulair the night before. That was it. I threw every pill in the garbage. He no longers acts like that. It's been almost two months so I am convinced it was the Singulair. By the way, he always complained of headaches, stomach aches and would scream in his sleep. Who knew - it was the singulair all along.

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.

PRAISE GOD for all of the stories shared on this site. And I've only read page one. My husband called me back today to say that he "googled" Singulair and found some interesting things (to say the least). While we were on the phone, my three-year-old was in the throes of another meltdown, kicking me, hitting me, throwing whatever he could get his hands on. My older two boys, 8 and 12, were ordered, once again, to lock themselves in their rooms to avoid being hurt by him. He will throw stuff, bite, hit, kick, and, at times, spit on us. This disturbing behavior is rather constant lately. He is like a mad man. Very scary.

Caleb has been on Singulair since about age 1, when he was diagnosed with chronic sinusitis and allergic rhinitis. Unfortunately, we initially equated his rages with the onset of "terrible two's" and dismissed his behavior to a chorus of "oh, he's just a boy!" My husband felt, at times, that I was just not disciplining him properly. I intuitively knew, having raised two other boys, that this behavior was abnormal, even for severe tantrums. We received a variety of suggestions from his pediatrician, caregivers, and grandparents, all to no avail. We have several calm days but things always deteriorate back to insanity. He is VERY unpredictable.

Last Thanksgiving, Caleb (age 3) was kicked out of his daycare setting for biting and hitting. Once I witnessed him run as fast as he could into a group of playing children, falling on them, kicking them. He would walk up to sweet little girls half his size and push them down as hard as he could. It was a nightmare. My husband had to take 3 weeks of leave to stay home with him while we prayed and searched for new care. We had him evaluated and he was staffed into the "developmentally delayed" program in our school district (for poor adaptive skills and personal/social behaviors). We recently had his tonsils removed, hoping that some of the sinusitis symptoms and behaviors would improve. They really haven't. This past week we have been looking into the Feingold diet. We have been PRAYING for answers. The last time we spoke with his developmental neurologist, he recommended a trial of Risperdol (sp?). We feel like more meds would be like a band-aid, not a solution. But his rage is becoming unbearable.

So, that brings us to today. I was so moved by your accounts. Unlike so many of you, we don't have much of a "before" to go by. But his "after" sounds VERY much like what you have all described. It's probably the pure rage that I see on his face that is the scariest part. And at the same time he seems desperate and vulnerable. He truly seems to snap. If we had pool chairs, I can just picture him throwing them (citing another post :).

We are going to throw the Singulair away. He will never, ever have it again. Even if this isn't the cause of his problems, I certainly don't want to exacerbate any behaviors with this toxic medicine. I will post again just to let anyone who's interested know if this changes his behavior. I am praying that my entry will help someone else, just as all the other postings have helped me. I have renewed hope.

I have copied many of your comments to a Word document. I will be sharing it with a high ranking officer at the medical clinic/hospital on Keesler Air Force Base. I hope that he will discuss this with his staff and that perhaps we can at least make a difference here. I, too, will be filing a report with the FDA. I can only pray that this medicine has not permanently altered his developing brain.

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.

My 17 year old daughter started Singulair last July for Asthma. She is brilliant and scored in the 99% on the ACT college entrance exam. She won 3 scholarships totaling over 60,000 and earned 27 college AP credits while still in high school, volunteering for the Red Cross, singing in choirs, and playing the lead in her high school musical and 3 plays. She was funny, sweet, and had many friends.
She left for college 3 weeks after starting the medication and saying she was breathing better. Her grades were terrible, even though I was able to check to see she went to class every session, as posted online. She became very depressed, withdrawn, staying in her dorm room. She was sleeping up to 20 hours straight without waking up. She didn't call her friends when she came home and only wanted to sleep. She was like a different person. She was so aggressive that she tried to run out in the middle of the night and attacked me when I tried to block her way, to the point I had to call the police. They diagnosed her with new onset major depression and ADD. They started her on Zoloft for 2 months and she got much worse and was removed from Zoloft as a result. She said she was too tired to stay awake even in class. We had a sleep study done for Narcolepsy and it was negative. Until reading these posts, I didn't connect the Singular. Everything I am reading is so familiar, it makes me feel ill. I can't believe I didn't know, I am a nurse. The guilt is horrible. I hope to get my daughter back, but she lost all her scholarships and only managed to pass 16 hours in one entire year of college. I can't afford to send her back without the money she lost. They even put her on a one time only probationary period to ever get Federal or State Financial aids and loans again. Singular had to be to blame. I am simply thankful my daughter is still here, she was very suicidal. My heart breaks for those of you that lost your children to the side effects of the drug. We have to get the word out by each filing a complaint to the FDA, and filling out adverse event forms.
Please don't let Merck get away with this. We need to act, even if your child was one of the lucky ones and is back to normal now.

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…

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...