Singulair and depression

It has been interesting for me to read this posts. I have been wondering about the long term side affects to singulair- mostly because my 11 year old has been on Singulair for several years now. We spent many of nights in the ER for asthma when he was little and no Dr. did testing. When he was 5 his pediatrician tested him for allergies and put him on Singulair. We have had a great experience with it. I find it interesting that many of the health issues on here- joint pains, bouts of depression, weight gain...I personally experience all of them and i am not on any medication. My 11 year old does not experience any of the mentioned side affects. I wanted to find out long term side affects for my own personal knowledge. Prior to Singulair, he was on Zyrtec which was not a good fit.

I am starting to think I would like to be a part of a class action law suit, my daughter had to switch schools because of her mood swings, and vague hallucinations. and vague paranoia. She once ran into a parking lot she was so afraid of needles! Took her to a psychiatrist, sensed she was quick to put her on mood stabilizers and left before the eval. Recently her ped refused to up her dose of singulair and told me about depression. I subsequently upped her flovent and took her off her singulair. I did this after I heard her teacher saqy she kept on leaving the classroom to go to the nurse, and was exhibiting defiant behavior. and saying she was depressed, hearing music that wasn't there, etc. Now that shye has been off of it a week, she is a different child, and hasn't argued with me once. Hasn't cried for 5 days. has not argued w2ith her brother either! I feel I have the child back from 5 years ago when she started taking it! unfrigging believable! I would love to sue, because these episodes have almost ruined my marriage, and caused me to miss many days of work, and feel guilty when I didn't Thank-God I just took her off of it on a whim!

I recently stopped using singular as a medication. I experienced an extreme episode of depression. Has anyone else experienced this side effect and to what extreme?

I recently stopped using singular as I had a severe episode of depression. Has anyone experienced this side effect and if so, to what extreme.

I've only been taking Singulair for a week and I couldn't get out of this daze I was in. I've been extremely tired, and depressed. Last night I had a really emotional, very hard, very real bad dream that has made me question why I have been feeling so terrible lately. So I looked up the side effects of Singulair and found this website. After, reading all these posts I quickly called my doctor to get me off this pill. I already suffer from depression, and I am being treated for it. I don't need to take another pill to send me back into the depths of depression and anxiety again. Thanks for all your input. I'm very grateful to have found this out about this pill before it was too late.

I am 44 years old and have been taking singulair for about 4 years. 3 months ago I started experiencing crushing chest pain, tingling in my lower limbs, and felt very stressed out. I went to the ER last Thursday and was checked out for angina - the ER doctor told me I was suffering from chronic severe anxiety. I took Ativan for 4 days and felt better, but now the drigs are gone and I again having constant chest pain. In doing some research I found that anxiety can be caused by imbalance in adrenaline, and so started looking online to see if any of the allergy/asthma meds I am taking (adviar, singulair, allegra) can affect adrenaline. That';s when I found this website. Although i find the testimony compelling, I wish more folks would have poted about how their symptoms improved (or didn't) AFTER discontinuing singulair. Also I've noticed many of the stories are about children not adults; many people are taking more than one med for asthma, and most people's symptoms seem to come on right away whereas I have been taking sinulair for years and only recently have anxiety. I will stop singulair tonight and see what happens, but am wondering if anyone has come across further research that correlates singiulair with anxiety? My job life is really peaceful, I am otherwise happy, work can get hectic but that's true of any job, and I am out of ideas as to why suddenly at age 44, when I eat right and exercise - why get anxiety? Thanks for the posts, I'll try to remember to follow up after I am off Singulair for a few weeks.

SINGULAIR'S LABEL HAS BEEN UPDATED:

The following has been added to the "Precautions" section of Singulair's label:

"Neuropsychiatric Events
Neuropsychiatric events have been reported in adult, adolescent, and pediatric patients taking SINGULAIR. Post-marketing reports with SINGULAIR use include agitation, aggressive behavior or hostility, anxiousness, depression, dream abnormalities, hallucinations, insomnia, irritability, restlessness, somnambulism, suicidal thinking and behavior (including suicide), and tremor. The clinical details of some post-marketing reports involving SINGULAIR appear consistent with a drug-induced effect.

Patients and prescribes should be alert for neuropsychiatric events. Patients should be instructed to notify their prescribe if these changes occur. Prescribes should carefully evaluate the risks and benefits of continuing treatment with SINGULAIR if such events occur (see ADVERSE REACTIONS, Post- Marketing Experience)."

I am a woman in my early 40's. Started Singulair a couple of months ago.Bad idea. Prone to depression in the first place, I have had major anxiety attacks (thought i was having a heart attack) unstoppable crying, heart palpitations, nausea. I'm glad I found this sight--I thought there was something seriously wrong with me. It all makes sense now--it's been the Singulair. Can't believe I didn't put it together before.

Our son, who is now 6 was prescribed Singulair at the age of 3 due to asthma/allergies. He was prescribed this by an ENT/Allergist. I thought our sons mood swings were due to the fact that we were expecting another child. He was always so happy/loving and playful. When the baby arrived 2 months later, his behavior worsened. Again, I put it on the new baby sister in the house. His moods/anger/outbursts increased. He hit, threw things etc. I told the doc about this and he said it was due to his enlarged tonsils, and they were then removed. Well needless to say, his behavior did not change because he was still on the Singulair. I mentioned the possible side effects to his pediatrician and she said it was a possibility, but to keep him on it because he needed it. Well, 3 years later, in March of this year I took him to an allergist that I had seen years ago. He immediately took him off the singulair (and all inhalers). His moods seemed to brighten a bit, but not they are worsening again. Is it possible for the Singulair to have long term damaging effects. I understand kids have tantrums, etc. Kids are kids, I get that. But he punches, kicks, screams, cries etc. My husband are at a loss. We don't know what to do. Oh, and he is now on Veramyst as needed (march-june, Aug-Oct.). Has anyone else experienced long term effects due to Singulair?

I was wondering if anyone has had loss of smell and taste of food from Singulair? I have a lot of the other symptoms but this is a new one for me started about 3 months ago, everything smells like a chemical to me like Windex and foods don't taste the same.

My 13 year old daughter has been taking singulair for 8 months, and started suffering from severe depression 6 months ago. We intervened and prevented her from committing suicide, but barely. We never correlated it with the Singulair until a visit with her pediatrician today. I am so sad I want to cry. I am the one that suggested to her asthma specialist that she be put on Singulair. I am so fortunate her pediatrician caught this. We couldn't figure out why her personality suddenly changed.

As i read some of the news reports on the new FDA comments,i see we are referred to as a handful of reports,the very words handful conjure up a picture of 10 not the thousands that there actually are.Also i noted missing from the news reports was ,that this drug is largely given to children,as young as 6 months,not for 10 days or 2 weeks but everyday,for as long as they need it.i know myself trying to convince my doctor,that my sons depression,insomnia and anxiety,came from this drug was impossible,so i fired him.I am wishing the best to everyone that has suffered,and ask all to please report your adverse effects to the FDA

Took it for a week. During the time I developed a sinus headache that would not go away. Sinus pressure, pain, congestion. Today had rapid heart palpitations and anxiety. I called my doctor and he said to stop taking it. I haven't felt like this since before I started taking Wellbutrin. I wonder if it interferes with it. I've read others who take Wellbutrin and after taking Singulair started having depression and anxiety. My boyfriend told me to stop taking it. I'm glad he did! He said when he took it, all his friends noticed major personality changes. It took it 2x/day for 3 months!

Doctors can be quacks and will throw any script your way. Be conscious of whats being given to you and if your Doctor really listened to your symptoms.

I am 39 years old and very active. I have been on Singulair for about 2 years now. I did not think I had any problems while on the medication because it did help my breathing. I am now on an antidepressant (Lexapro)which I began about a year after I began the singulair. My depression however started almost a year before I actually got on the Lexapro. I had alot going on in my life so I just equated my depression to that. However I am realizing now that maybe the singulair triggered my depression. I ran out of singulair two days ago and am experiencing withdrawal symptoms, extreme tiredness, stuffy head, and I had heart palpitations last night, which I have never had. The withdrawal symptoms are why I began researching the medication because I couldn't understand how being off of it for such a short time could cause such an effect. I was on Singulair once before about 6 years ago before I retired from the military while I was at Ft Hood before I deployed to Iraq. By the time I left Iraq I was on multiple medications, Singulair, Claritin, Advair, Emergency Inhaler, When I arrived in Iraq I became ill and listed my medications. They were in shock and took me off everything except Claritin and I was fine. It wasn't until I returned home I began the Singulair again. (Why? I guess I never equated it to causing my other issues until now), I am also taking Zyzal and Lexapro. I see now that every time I take the Singulair it leads to additional medications to other things. I am going to stay off of it and hopefully be able to wean myself off of the Lexapro as a result. Unfortunately I probably will still need to take an allergy medicine. Thanks everyone for posting this useful information. I have two kids 6yrs and 12yrs and I know now that they will never take this medication. They have allergies like me so it is very probable that eventually it would have been mentioned. The allergist/asthma doctor is adamant the 12 year old has asthma but I never gave him the advair that he wanted him to take because I did have side effects from that medication that I did recognize myself and my son is the fastest runner on his select soccer team and extremely athletic without it, no emergency inhaler needed or anything.

Hi I'm a 35 yr old female i've been taken singular for several yrs now for my asthma. I let my script refills run out and in the process decided i wanted to stop taking it. I didn't think it was helping me anymore. I didn't see many of the side effects till i stopped the medicine. The first week very tired sinus and losts of headaches. The second week was hell I had fevers of like 99.9 and 100 with body aches, chills ,night sweats and terrible depression! I couldn't find the joy in me anymore at all! Didn't want to be with my family anymore I hated my life. I was also terribly nauseous and little to no appetite. I'm in my third week now the depression still comes and goes through out the day not as bad tho and the nauseous is still coming and going as well. I'm so frustrated! I would have never taken this had I known this would happen to me. Any one else experiencing this?

This is unfortunate. I posted my symptoms here before on January 11th and approximately 2-3 weeks off the drug I started to feel happy and normal again. I told my doctor, I told the FDA, but apparently the message is not getting through. Yesterday on the commercial for singular they did not even mention depression as a possible side effect of the drug. The complaints are being heard but somewhere a long the line they are being ignored. I don't know what to do, and I am upset that so many suffer at the hands of this drug.

I have been on Singulair longer than I can recall... at least 10 years, maybe longer. My 7 year old son has been on it since he was probably 12 months old. Neither one of us have had any problem reported here. No depression, no sleeplessness (until I weaned him from naps, he slept up to 13 hours a day), no leg cramps, nothing. We are two of the happiest, most well adjusted people you could know. And, best of all, we haven't had any asthma attacks. Bottom line, different drugs react differently in different people. Don't let the post here stop you from trying a medication that for some could mean the difference between life and death depending on how asthmatic they are. As with any drug recommended by your doctor, try it. If you experience adverse reactions, stop it ASAP. It's that simple.

My seven year old son has been on singular for over four years. He talks a lot about death. He constantly cries about his dead grandmother which he never knew. He is a very smart child and lately I have realized that something bothers him. He is starting to cry often and feels very depressed. This is what he says when he cries: “My brain thinks bad thoughts about you, (mom and dad). Mom, I really love you and daddy, but my brain does not listen to me. My brain tells me bad things about you like to get a knife and stub you to death, or get a gun and kill you. Please mom make my brain squish the bad juice away and live only the good thinking on it. I know that you love me but my brain tells me different.”

My son is begging for help and every day he tries so hard not to have bad thoughts. He tries to hug us and kiss us a lot, but I see on his little eyes that something is wrong. The first time this thing happened I thought maybe a TV show or something made him think so. I am becoming very worried about him and started research on the computer. I don't know what causes his depression, but I know for a fact that he is depressed. He is our only son and gets all the love and attention.

Although he has been on singular for a long time, I have given it to him regularly only the last five months, since his doctor urged me to do so. Before I gave him the singular only when his allergies acted up. When he got better I would completely stop it. I didn't know anything about singular, but I don't like using medicine, and that is the reason I did not use it regularly.

My son has other similar behaviors that are out of his character like no desire to raise, get angry, worry that I would die, behavior problems at school, he thinks he is stupid although he is a straight A student, has nightmares, is scared that he would die, can't concentrate, is scared to be by himself etc.

It brakes my hart to see my baby being depressed. I will stop the singular to see if he will get better. I pray to God he will.

English is my second Language. Sorry for any inconvenience.

My son used a nebulizer 2 to 4 times a day every day from the time he was one and a half years old. When he had just turned three his doctor prescribed Singulair. It was like a wonder drug for us! It took care of his asthma and we didn't have to use the nebulizer any more. He's been on it ever since -- he's 10 now -- he also takes zyrtec and has a rescue inhaler that he uses maybe once a week. About every other year he requires a course of steroids and a week of regular nebulizer use. Also, for the past year he has also required a daily inhaled steroid.
Now, about his mood issues. My son has always been sensitive and intense, moody. The first time I became alarmed was when he was 7, and he told me he wanted to burn his hands on the stove to punish himself for forgetting his homework. I consulted a psychologist who evaluated him and said he was not clinically depressed. Since then he has had periodic "dark" episodes -- especially in the winter. He has said he wants to die. He has had crying jags over things that are upsetting (loss of a pet was the worst) but it seems excessive for him to be saying he "just wants it all to end." He has told me that he is always unhappy and that he hates himself. He has also had problems with moody acting-out with friends. He will brood about hurt feelings until he loses his temper and screams at the friend. I have worked very hard with him on learning to manage his emotions. He hit a friend at school who was teasing him. He accepted his consequences willingly and willingly wrote letters of apology -- he told me he thinks he has anger problems and doesn't want to be this way. And his character is that he is a sweet, caring boy who can't stand to see anyone hurt, but also can't stand to be hurt.
A couple of years ago I asked his allergist if any of the meds he's on are linked with depression. He said no. We have a family history of depression, and I thought my son had gotten the worst combo of all the genes.
Recently, this all got to the point that I decided he needed to see a psychiatrist and quite possibly take medication for depression. Before I made the appointment he had a check-up with his allergist. Going down his list of meds the dr. said, recently Singulair has been linked with depression, have you noticed any moodiness or sadness? My first thought was that I have, but that he's always been like this. My 2nd thought was that he has been on Singulair for most of his life. I said yes and that I'd like to try him off of it.
My son resisted going off of it. He has had enough negative experiences with asthma that he didn't want to risk it, but I insisted. I didn't expect to see any change, but I thought it was important, as I was going to take him to a psychiatrist to consider depression meds, to see how he did off of it for a couple of months.
Less than a week later, he had been in a wonderful mood -- to the point of being silly and giddy all evening -- for 3 days in a row. The kind of mood that I don't see him in often, and when I do I think to myself, "he should be like this more often." One evening he even realized he had forgotten to bring home a homework assignment. I thought, "oh no, here we go, his evening is ruined." But he talked through his options with me, looked a little uncertain, and said, well, okay, I guess I'll have to tell my teacher I don't have it. I'll tell her I'll make it up at lunch if she wants me to. That was it! He didn't mention it again. I didn't say anything about his mood, because I really don't think I can know anything after just a few days -- it could be coincidental. The next day, he said to me that he thinks being off the Singulair is "working." He has now told me that a couple of more times.
I am tentative, but amazed. Even if my son does have a predisposition to be depressed, maybe the Singulair was making everything worse, and things really can improve for him. I am afraid to be to hopeful. At the same time, I feel guilty for giving this medicine to him for 7 years without a second thought.
As an aside, my son has periodically complained of leg pains, that I always told him were growing pains.
I would love any feedback that anyone can give me. So far (these two weeks), his asthma has been controlled with pulmacort, zyrtec and albuterol, so that aspect is okay.

Need anyone say anymore!!! I am baffled at the comments made and relieved I felt the need to research this. My daughter is 4 years old and was prescribed Singulair a year ago for allergies and chronic respiratory problems due to undiagnosed (for a month) RSV at 6 mos. old. I put her on it (age 3) and something just wasn't right, cranky, crying, moody when normally she was not that way, so I took her off of it. 7 days ago she was having trouble breathing and at our urgent care visit the Doctor told us to start taking the Singulair again. I explained to him then that I felt it made her moody and depressed. He told me it doesn't take effect for at least a month. Stupid me, the Doctor knows better right?! WRONG!!!! Who knows our children better than we do?! She has taken 5 pills and I have a child that is all of the sudden having nightmares, acid reflux, DEPRESSION, crying spouts that she can't stop. WARNING....do not give your child this medicine...I am sick I gave it to her again and grateful it has only been a week. Hopefully these symptoms will disappear quickly.

I have been taking Singulair for runny nose due to allergies. I never associated things I was experiencing with this drug as my MD said there were no side effects, I have experienced weird vivid dreams, depression, hair loss, leg cramps, feeling tired all the time. Singulair has not helped my runny nose. I can't believe how many infants and children take this drug.

I have been taking singulair for runny nose from allergies. I never thought the drug was causing side effects but I an having many of the side effects described by other users of this drug. Vivid, weird dreams, extremely tired all the time, leg cramps, thinning hair, blurred vision, depression. I can't believe how many infants and children take this drug. It really didn't help my runny nose. My MD says there are NO side effects from this drug. I think I disagree.

My doctor is a good doctor she is a great listener. Medicine is a hit and miss process for one to undergo. Singular worked great to keep the asthma at bay. Yet, there was a down fall that my doctor did not expect. I was having major mood swings. Such as anger, sadness, depression. Once I added Singular, it didn't come until the second month. I know myself quite well I am funny and very loving. This change came like a thief in the night. I woke up one day not standing the sound of my family voices and felt angry. I was crying and feeling sad to the point I was just waiting for the next mood to come. I do know the difference us women have with moods. This was a different degree of a mood swing. I been threw ups and downs so life was not the problem. I notice this change and immediately told my doctor. But, also I was on my rescue inhaler and a steroid inhaler. I believe it became like a combine cocktail of drugs. This combination cause me to feel this way. I got off the steroid that I was taking and Singular. I notice in just two days I am more patient, happy and so is my family. My doctor has me on new meds now and hopefully this well work. Please, as soon as you feel different don't wait seek your doctor's advice immediately. Good luck to all who suffer from Asthma. May there be a cure one day. Thank You, S.

My 13 year old son started taking singulair Nov 13, 2008 for seasonal allergies. Three weeks later teachers at school recognized a change in behavior that was not typical or noticed prior to the medication. The end of Dec. 2008 loss of appetite and increased mood changes and noticeable aggression toward others and unable to change his feeling even knowing his thoughts & feelings were awful and not typical or right. Jan 13, 2009 we realized it was the med and he stopped taking singulair. Not only is my son still trying to recover from physical effects, he currently is trying to recover emotionally. No longer able to attend school and in a home-bound education program. Would not recommend this drug to anyone. Was taken to the emergency room 3 times within the last month and a half for physical issues and choking sensations & loss of weight. Was admitted to the hospital twice and the hospital admitted him to a psychiatric treatment facility once and currently he is going to a psychologist weekly all within the last month and a half. Prior to taking singulair no major issues.

My son has been on Singulair for about a year and a half...it really seemed to help his allergies...at least at first. This winter has been very dry and I have been having to give him other over the counter allergy medication as the Singulair isn't helping much. He also started losing weight..just not hungry. At first that was ok as he needed to lose a little but then he was getting too thin. He wasn't eating much at school but refused to take a lunch from home. I took him to the doctor just recently to see if he was physical ok since I didn't know what was causing the weight loss. The blood testing showed everything was normal and I just told him he had to start eating better...he has somewhat...but also he finally told me he has been feeling very depressed...seriously depressed and having suicidal thoughts too due to some kids picking on him at school.

I knew there were problems as he complained alot but I had no idea it was this serious. I have taken him out of that school. Right now I don't know if the Singulair could be adding to this depression or if its all just due to the bullies. While he complained a lot he never acted as if it was bothering him that badly or I would have gone to the school about it. Anyway I stopped the Singulair and am going to see if his mood improves or not. After reading some of the scary posts on here regarding the side effects I am wondering if this is a good idea stopping it or not. I am waiting for a call back from his doctor on it. Since its once a day..its kind of hard to wean them off of it...but I could cut it in half ..do that for a few days, then cut it smaller and so forth. His is chewable so I could do that with no problems. He is 13.

Researchers have been doing studies for many years regarding trying to determine the role of genetic factors in patients response to Singulair (Montelukast).

This study from Spain identified the following gene variations hypothesize to be related to leukotriene pathway response. Sixty one patients with asthma were studied. Three gene types were identified:

type 1. Thirty-two patients (52.5%) were homozygous for the five repeats allele;
type 2. 17 (27.9%) were heterozygous (4/5 repeats)
type 3. 12 (19.7%) were homozygous for 4/4 repeats.

The study showed that montelukast was effective for types 1 and 2 but not effective for type 3. Type 3 represented approximately 20% of the group study.

"After the montelukast treatment decrease number of asthma exacerbations, improvement of FEV(1) and decreased use of beta(2) agonists was observed in patients with 5/5 or 4/5 repeats. Conversely, the patients with 4/4 repeats genotype did not modify these data after treatment."

So it seems logical that if it can be identified that montelukast is not effective for certain gene type variations, then montelukast could cause adverse side effects in certain gene type variations.

It is interesting that 20% of this group does not respond positively to montelukast. That is the exact same number that even Merck says gets a headache from montelukast. Headache is the highest incidence of adverse side effects that has been reported. That comparison, however, is just a coincidence because it has not been studied and proven. Maybe.

Where are the studies that pertain to gene type variations and adverse side effects? You would think that somebody could do them.

Respir Med. 2008 Jun;102(6):857-61. Epub 2008 Mar 12. Links
ALOX5 promoter genotype and response to montelukast in moderate persistent asthma.Telleria JJ, Blanco-Quiros A, Varillas D, Armentia A, Fernandez-Carvajal I, Jesus Alonso M, Diez I.
Institute of Biology and Molecular Genetics (IBGM/CSIC), University of Valladolid, Valladolid, Spain. ******

BACKGROUND: It was hypothesized that asthmatic patients with mutant alleles in the leukotriene pathway should not respond to leukotriene receptor antagonists and the concept of a tailored treatment is increasingly supported. METHODS: Sixty-one patients (mean age 24.9 years, range 14-52) with moderate persistent asthma were clinical and immunological assess prior and after a 6-month treatment with montelukast. Tandem repeat polymorphisms were genotyped in the promoter (-147 to -176) of 5-lipoxygenase gene (ALOX5). RESULTS: Thirty-two patients (52.5%) were homozygous for the five repeats allele; 17 (27.9%) were heterozygous (4/5 repeats) and 12 (19.7%) were homozygous for 4/4 repeats. After the montelukast treatment decrease number of asthma exacerbations, improvement of FEV(1) and decreased use of beta(2) agonists was observed in patients with 5/5 or 4/5 repeats. Conversely, the patients with 4/4 repeats genotype did not modify these data after treatment. CONCLUSIONS: It was confirmed that ALOX5 promoter polymorphisms have a clear influence in montelukast response in atopic moderate persistent asthma patients. The genetic study could identify those patients most likely to respond to montelukast.

PMID: 18339529

I have a grandson who is on singulair since he would walk. He is now 5 years old. He has trouble in school, heat racing, out of control tantrums, biting and hiting in daycare. When he is not taking this medicine he is a different child. Parents are doing what ever the physicians order. Please stop prescribing medicines just for a runny nose, it is not worth the side effects.

My son is 7 years old and was put on singulair for his asthma and allergies, my daughter who is 10, had been on it for over 2 years.
My son started experiencing, night terrors, out burst of crying, difficult to make decisions.
Anxiety attacks, panic attacks, did not want to go to school. After seeing his Doctor it was suggested that we pull him off the medicine. We started noticing changes within a few weeks. Please watch your child closely if on this drug. My daughter did not have side effects however we have taken her off this medicine also.
I would really be careful with this drug. Our family was in complete terror, watching your child struggling like this. USE CAUTION, IF YOU DECIDE TO TAKE THIS MEDICINE....

Science has NOT conclusively ruled out a link between Singulair and suicide. In fact, science DID reveal a link between Singulair and depression (a risk factor for suicide). In the clinical trials one montelukast participant dropped out and the investigator cited the reason as depression that was "drug related". Additionally, in the primary and Phase II/BIII Studies, 12 out of 1955 participants taking montelukast reported depression, vs. 5 out of 1108 on placebo, and 1 out of 251 on beclomethasone. This information is presented in the FDA's medical review for Singulair and is available on the FDA website. Depression was not only reported post-marketing as some would like us to believe. As the FDA explained in their update to the investigation, Singulair's clinical trials were not designed to measure neuropsychiatric events so some may not have been reported. Using clinical trial data to prove that Singulair cannot cause a particular symptom or outcome is as foolish as discounting post-marketing reports that show that some neuropsychiatric events associated with Singulair are consistent with a drug-induced effect.

To get the real information in regards to what level of research that is going into this investigation is.go to the Institute for Safe medicine practices click on Quarter watch.
To people like chris555, I believe you are engaging people for sport and say very hurtful things,your day will come and it may just be in the unemployment line.I can only imagine that you must work for Merck or you would not feel so threatened by the good that has come from Parents advocating for their childrens safety.I want you to know, that all who knew our family and our child understand what took place and our reasons for trying to get the proper information where it should have been," on the label". When our child died no one knew about all the added side effects from post marketing reports,which is "a reliable way to track a drugs adverse events".Maybe you should do more research on the legitimate information of causal relationship. Don't be so afraid of a possible drop in revenue for the drug company that I believe you might be an employee of.K. M.

I am 34 years old. I am a pharmacy tech. I have asthma and allergies. I have taken singulair pretty much every day since it came out on the market. I've had asthma since i was about 10 years old. I took theophylline as a kid. Steriods on and off especially during times when my allergies are bad. I still use Advair during the fall and spring. Every drug has a side effect. However breathing is pretty good damn thing. Do I have days when I feel low? Yeah. Do I sometimes have nightmares? Yup. Are "natural" products the answer. Not always. The fish oil that some of the posters are touting can also cause GI problems. Some of the natural products contain herbs and other plant derivatives that can be harmful for a child that suffers from allergies. Not proactively treating asthma can be deadly. Some of the parents are suggesting steriods as the answer - those can cause weight gain, growth suppression and can lead to a worsening of asthma.

Singulair has never made me feel like I've wanted to kill myself. I was more depressed and angry as kid when my asthma did not allow me to partipate in normal childhood things. I was sad and hated life when I couldn't keep up with friends at recces because I was having trouble breathing. You have to outweigh the costs with the benefits. I am more irritable when I have asthma flareup then I am on a normal day. For me, I choose to breathe. And singulair has been helping me for almost a decade.

I'm not saying the medication isn't causing these symptoms but maybe there is an underlying cause to your child's depression.

Any drug has a side effect. But without medical research and the medications that come with them - people would still be dying of simple diseases and we wouldn't have vaccinations. As a society, as a whole, we are a culture that looks to someone else to fix things and then blames the people who try to fix it. We need to stop being the "hot McDonald's coffee'" society.

My 6 1/2 year old daughter has been on Singulair for 3 1/2 to 4 years now and we have had horrible experiences! She was having night terrors, mood swings, angry issues, self control issues, crying over small things, etc. We have been to psychiatrists and psychologists who have diagnosed her with mood disorder, sensory processing disorder and anxiety disorder! Well she has recently been having stomach problems so we have been going to a GI to figure that out. I got online to research and found numerous sites that told how Singulair causes all these things in children. We took my daughter off the meds and within 3 or 4 days seen a tremendous difference! She is a totally different child! It just really frustrates me and saddens me that all these children and their families are going through all this and the doctors do not seem to care. The allergist or psychiatrist didn't believe me. They say no study has ever proven such things. I don't care what they say we as parents know our children and we are the experts when it comes to seeing how they change when on this medicine, we are the ones that live with them and are with them everyday not the doctors! I think they just don't want to lose out on their money from prescribing this drug 90% of children with allergies and asthma!

I want to post this because this site has given me good perspective on this Rx and side effects experienced by others; its good to know I am not alone. As far as an agenda, I have none, in fact I was all for the Singulair initially, because it seemed to be a good alternative to inhaled steriods which I had read could interfere with normal growth. My son, 4 yrs. old, with a diagnosis of Asthma, started Singulair about 2 weeks ago. Asthma seems to have been improved by Singulair. Within a couple days of starting it, though, he reported vivid (but not nightmare-ish) dreams, a week later he dropped his afternoon nap, which we were expecting to happen eventually, so didn't think much of it. He is a wild child generally, but we also noticed an uptick in bad and aggressive behavior within a day or two of starting the Singulair; we really clamped down on him though, so that effect has been somewhat muted. He has always occasionally complained of indigestion stomach aches, but these complaints have increased to several times a day in the last week, also complain of lower abdominal pain which he says is "different" than his earlier indigestion stomach aches. Last week or so he's been up late at night, had trouble going to sleep, looks a little pale with dark circles under his eyes ("he's becoming a Goth" I joked with my wife). Last night he got out of bed late, appeared disoriented and seemed to be half awake, half asleep. He was talking, but not making sense and seemed to be upset and/or confused, but when pressed he assurred me nothing was wrong and nothing hurt--put him back to bed and this morning he remembers getting up, but also keeps telling me he had a "weird" (not scarry) dream and that he keeps seeing it while he's awake. Luckily this weird dream was not scarry for him, but he was clearly a little freaked out by seeing it again this morning. He seemed o.k. heading off to preschool, but we are taking him off the Singulair as a precaution. My advice to anyone else out there seeing similar symptoms in their kids is to go with your gut -- I always tell people that a Doctor's job is to tell you the odds, like only 1 in 500 or 1 in 1000 kids will have a certain reaction, or condition, or illness, it is the parents' job to be sure that their kid is not that 1. So I'm taking my kid off the Singulair because I think he may be that 1 kid who experiences these unusual side-effects. How wide spread they are, I have no idea. I will get on my soapbox and say I think it's time for the FDA to require drug companies to conduct long and short term clinical studies on kids for any drug that will be prescribed to kids--entrusting our childrens' health and well being to a drug company's own short term study conducted on fully developed adults is foolish and insane.

My son is 11 years old. He has been on Singulair for about six years. Ihave taken him to see a psychologist twice because of his terrible mood swings. He was diagnosed with depression last year. I am very concerned about this drug now. He has also suffered from migraines for two years. I also pulled him out of school and started homeschooling him because of the stress of school was causing three migraines a month. I also have a 19 year old boy who is not on singulair now. He took it for 8 years and was diagnosed with ADHD. He also went through depression as a child. I am making a appointment for my son to go back to his allergy doc tomorrow. Also I am not blaming my sons illness on singulair, but I am terrible concerned that it could have harmed my sons.

My son is 12 and has been taking Singulair for the last ten months...he has been getting moody and upset for no good reason over the last 3 months and I put it down to "hormones" starting to kick in. He has now gone to feeling very sad and has even told me last night that he has thought about killing himself several times and feels he can't go on, or cope and feels lost and lonely or unwanted and in the way. He is confused and does not understand what is happening to him. I have just realized it may be the Singulair and will be taking him off it immediately. I'm hoping it is this as if it isn't I feel totally helpless as to how to help my child. Please say a prayer for him. He used to be happy go lucky.

I would like to know who is NOT experiencing side effects from Singulair.
We are not.
My 7 years old started Singulair three months ago because of allergy issues. She had asthma attack every other week, running nose all the time, she was so miserable, she missed many days of school and she couldn't exercise .Since she started to take SIngulair her allergy improved, no more asthma, no more running nose. SIngulair did not change her way to be. She is doing very good in school (she is above the average..) she does piano, ice skating, she is purple belt Tae Know Doe, speak two languages, she is doing great in everything. Of course she has her "bad moments" but which child does not?
I tried homeopathy, but it did not work, she got worst and worst. I was supposed to give SIngulair to my daughter a year ago, I did not because I was afraid of the side effects. But I wished I had started before because I could have avoid so much steroids since she had asthma most of the time. The doctor convinced me to use this medicine when she said " You think SIngulair has side effects, yes sometime it does, but do you know the danger of using steroids so frequently in a little body?" Then I thought I had to give a try. I am glad I did. Of course I keep watching my daughter behavior closely and reading all the possible side effects of this medication. I forgot to say that beside singulair my daughter is also taking Pulmicort, two puffs once a day.

My husband has been taking Singulair for the last two years. It has made a tremendous difference in his frequency of sinusitis in the winter and allergy symptoms during the summer and fall seasons. For at least the last year, he's been having trouble with insomnia, so he is taking Melatonin. This helps but last night something very new happened. We went to bed around 11:15 p.m., then at 12:45 he woke me up and said he was having trouble breathing. He was very agitated and paced around the room, would sit for a few minutes, then get up again, pace and act very agitated. We've been married for 26 years and this is not normal. We almost went to the emergency room but decided to wait. This morning he's tired and very quiet. From reading the other postings, I think that Singulair could be causing the insomnia and now the agitation and depression.

My 7-1/2-year-old son was on Singulair for 5 months for asthma and possible allergies. He had been on medication for ADHD for almost a year at that point and had been doing well with it. Singulair made him into a monster. He could not be reasoned with and was constantly overreacting to everything. Just asking him to put on his shoes caused explosive reactions, even to the point of threatening us (his parents) with bodily harm if he did not get his way. We unexpectedly stayed the night out of town and did not give him his Singulair for a few days and started noticing that he was much more rational, calm, and more like his old self. I had heard of the depression risk with Singulair and googled about it this morning and was floored by the amount of children with these type reactions. It is now listed as an allergy for my son and I will never give it to him again.

It seems that this subject has been extensively documented, but just wanted to confirm that I believe this drug is very dangerous. We JUST put our 5-1/2 year old daughter on it one week ago. She has NEVER had any issues sleeping, is most often in a great mood, and has been protected beyond belief by my wife from negative imagery, TV, etc. The last week was unbelievable. Night terrors every night, with the most vivid and negative imagery when asked to describe the content of her dreams. Things that I would have thought she must have gotten from watching a Stephen King movie. Given the lack of fitful sleep could have been a contribute, but her mood all week was very downtrodden. Hard to say a 5 year old can be depressed, but I would have to say she was, very sullen, moody, despondent to affection.

I can positively say this was a blind test. We didn't really read the label on the medicine until yesterday, so we were not looking into things that weren't there, nor were we focusing in on the sleep issues. We took her off yesterday, and hopefully I will be able to report that the night terrors that I am 95% positive must have come from this drug will abate.

I hear because the chewable format is new, this drug is really being pushed. I hope this drug is pulled instead of being promoted. Buyer beware, especially administering to kids. I can't imagine if our daughter had been a little younger and not able to express herself to the level she can at 5.

Im 15 and I never knew that singulair had the side effects that included mental/mood change or worsening depression, etc. Although I did find it strange that I always seemed moody or bi-polar, it never occurred to me that it would be caused by singulair. I've been taking it for about 3 years and before I went from 5mg to 10mg i use to have difficulty sleeping, but just last October when I started taking the 10mg i noticed an even greater change in my moods and mental thoughts, i was always sad, doubtful, mad, and was always thinking of all the negative things in life, in fact I even went through a really deep anxiety stage around the end of October, it was a mixture of the medication and stress i'm guessing, but I couldn't stop crying, I'd cry then forget the reason, start crying again, and wonder what i was crying about or why i was crying for such a thing that lasted for about an hour... Then when I ran out, i sort of just put the thought aside to refill them for the whole month of November and noticed i began to feel more... up-beat, very happy, I cant remember the last time I felt so great for such a long period of time, at least not during my pre-teen through teen years so far. All my friends noticed too, normally i would be complaining about how the day is going so bad, but i can't compare November to any other month during the past almost 3 years, although my asthma symptoms came back. So I started taking them again this Monday, and right away that night when I was doing homework, i was studying about tabacco all these thoughts rushed through my head, I felt bad for the people i loved that smoke, and I started crying, almost blaming myself for their smoking, when i stopped crying i started wondering why i cried... it made no sense, normally i'd just be like, "oh man... why do they waste their time doing that.." and forget about it, but the tired, sad, doubtful feelings came back right away. these past few days I've felt like that, and today before i was about to take my pill i looked at some new information that was never included before about the mental/mood changes, worsening feelings of sadness etc... and it all just hit me like a ball going 90mph.

I was surprised to hear that Merc, the maker of singulair update their side effects 4 times in one year to include depression, anxiety, suicide, and suicidal thoughts. It was prescribed to me cos of my allergies and asthma. I never really took singulair on a daily basis because it made me feel so tired and out of it. So i would only take it when my allergies were very very bad, like having a bad sneezing fit or nose would be runny non stop which would be at least 1 to 2 times a month. My asthma wasn't really that bad, i would get it when my allergies would act up like i mentioned before. When the fires in California were going on my asthma started acting up because of all the ash in the air. I was having asthma attacks every day. Since singulair works great for asthma i started to take it everyday and noticed my asthma went away. The first couple days were fine..and after two weeks i started noticing i was becoming anxious and irritable. Also depression sunk in...So i wondered what was causing it. I wasn't going trhough any major life changes. So i looked up singuliar side effects and noticed the four new side effects that i mentioned above...I stopped taking the pills to see what would happen and i felt emotionally better but the asthma came back..id rather suck on my inhaler then be anxious and depressed.

Oh my gosh. I am on this website because I googled "behavior issues with Singulair" Both of my children are on Singulair. One from as young as 5 months old. Both Pulmonologist, allergist and Internal med Ped. insisted that it was a safe drug. They aren't living with it. My 7 year old has taken it consistently for 5 years and recently upped is having behavior, aggression, insomnia and constant reports back from the teacher on his behavior. We had him psychologically evaluated and they found nothing uncommon to his age. All his issues are described in almost everyone of these side effect threads. I am just afraid to take him off and feel the blame if something serious happens. I am calling tomorrow for possible alternatives.

I was put on Singulair about three weeks ago, and noticed immediately that my mood had changed. I am an adult ,and felt this sense of sadness, anxiety, solitude, not wanting to be around anyone. I took myself off the drug and have tics all over my body and eyelids ,which is driving me crazy! I even had heart palpitations ,which are very distressing. Today it seems to be better, and this is day three off the med. The only way I can explain how I felt on this drug is doom and gloom.

I was first given Singulair at the age of 21. At which time, I quit a job in which I have yet (at 28) to match its income. My doctor continued to give me samples as I could not afford the medication. During this time, I was very depressed, contemplated suicide often and was given a serious of antidepressants-non of which helped. For one reason or another, I stopped taking everything. At which time, it seemed I had a new lease on life. I went back to college, finished my degree, and got a job in decorating. My asthma began acting up again, and again I took singulair and again had to be given antidepressants. I wound up quiting that job too and worked a serious of low paying jobs. Again, I quit, and again found the urge to "live" again. I never connected the two, until this past week. I was given singulair again by another doctor on Wednesday. Thursday I had nightmares, Friday I spent the day crying, Saturday night I began to think of leaving my husband (I also did that ALL the other times I took the drug and we've been together 14 years-I love him). Today is Sunday, I normally go to bed around 12 or 1 a.m., but I am making myself stay awake and have all day. This drug has ruined a large part of my life, please, if anyone notices even a little depression with this drug, Stop!!!! It is not in your head, it is this drug!!!!

My son is almost 4 but has been on Singulair since he turned 3. We saw an immediate improvement in his allergies and asthma and thought it was a miracle drug. That is until we started to see our sweet, outgoing little boy change into something we barely recognized. We thought maybe it was just a stage he was going through or something and didn't connect it to the Singulair until his doctor accidentally wrote his refill prescription for 5 mg. instead of 4 mg. After about 2 weeks on the 5 mg. his mood swings increased substantially. He cried for hours everyday at school. He had previous trouble with his emotions at school on the 4 mg. as well. He continued to cry and throw fits at his preschool so often that he was ending up in the principals office. At home, he became clingy and so emotional that he would cry about everything. After doing some research on Singulair, I immediately took him off the drug. Within 1 1/2 weeks off of the drug, my little boy was a different child. I thought maybe I was the only one who had noticed until his teacher came to the car and ask what happened. She said that he didn't even resemble the same child that started school. He is sweet, and calm. He can take discipline without crying and gets praise every day instead of going to the principals office. His trouble sitting still and listening to the teacher are gone and her push for us to have him tested for ADHD has ended. He is now a star student. The only difference is the removal of Singulair from his little body.

I notice vivid dreams/night mares the first night. The second day I notice thoughts of running of to very far places. The third night severe chest pains, extreme anxiety, irritability, and thoughts of suicide. Now I have been treated for depression in the past but never attempted suicide. After the third day of singulair i wanted to take a gun to my jugular vain in my neck and pull the trigger. Oh the joy of a panic attack.

I am re-posting this from June. I believe that we have many reasons to suspect that Singulair does indeed penetrate the blood brain barrier. I personally believe that under certain unusual conditions that Singulair can cause neurological damage. I tried before to put together a scenario of brain biochemistry that could explain how this can happen. Of course, I am just hypothesizing and all of my ideas will not prove to be totally correct. From the number of postings here regarding neurological symptoms, I believe that there is an answer out there somewhere. Why the FDA is not searching for this answer is a complete mystery to me.

I believe that it is possible that Singulair causes the same biochemical response in the brain that is cited in this study -- thus causing neurological damage.

"Thus, elevated NO production leading to mitochondrial dysfunction, glutamate release, and excitotoxicity may contribute to neuronal death in neurological diseases."

IS SINGULAIR CAUSING THE DEATH OF NERVE CELLS IN SOME PATIENTS? DOES THIS HAPPEN - ALTHOUGH INFREQUENTLY- BECAUSE OF GENETIC OR BIOCHEMICAL FACTORS OR BOTH?

June 12th
2008
2:56 AM
I have stated many times that I am not an expert. I just post what I find. This has been a mind boggling journey for me. This is way over my head but I struggle to read and understand. Finding answers to why children are suffering from neuro-psychiatric side effects is worth the effort.

I have made the following observations.

1. Some quinolines are known to be able to cross the blood brain barrier.
2. Molecules that ionize are known to be more likely to be able to cross cell membranes. So if montelukast ionizes as a result of change in blood pH to sufficient acid conditions, then it could be possible that it does in fact cross the blood brain barrier.
3. We know that there are cysLT1 receptors in the brain.
4. We know that researchers believe that montelukast may bind at the arginine of the cysLT1 receptor.
5. We know that arginine contains four nitrogens. And montelukast contains one.
6. We don't know what happens to those nitrogens. Are those nitrogens converted to nitric oxide?
7. We do know what macrophages create nitric oxide as I posted.
8. We do know that if something cause excessive nitric oxide to build in the brain that there would be damage to the neurons.

Some people may remember when I got stuck at the astrocytes, the cysLT1 receptors and glutamate. I keep looking for research reports that may shed more light on this.

Titre du document / Document title
Nitric oxide causes glutamate release from brain synaptosomes
Auteur(s) / Author(s)
MCNAUGHT K. S. P. (1) ; BROWN G. C. (1) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Department of Biochemistry, University of Cambridge, Cambridge, ROYAUME-UNI
Résumé / Abstract
We determined the ability of pathological levels of nitric oxide (NO) to cause glutamate release from isolated rat brain nerve terminals using a fluorometric assay. It was found that NO (0.7 and 2 μM) produced (4 and 10 nmol/mg of synaptosomal protein) Ca2+-independent glutamate release from synaptosomes (after 1 min of exposure). Spermine/NO complex (spermine NONOate; a slow NO donor) and potassium cyanide (an inhibitor of cytochrome oxidase) also caused Ca2+-independent glutamate release. Preincubation of synaptosomes with 5 μM 1H- oxadiazole quinoxalin-1-one (an inhibitor of soluble guanylyl cyclase) had no effect on NO-induced Ca2+-independent glutamate release. Ca2+-independent glutamate release produced by NO was greater in a low-oxygen medium. NO, spermine NONOate, and potassium cyanide inhibited synaptosomal respiration with a similar order of potency with respect to their ability to cause glutamate release. Because NO has been shown previously to inhibit reversibly cytochrome oxidase in competition with oxygen, our findings in this study suggest that NO (and cyanide) causes glutamate release following inhibition of mitochondrial respiration at the level of cytochrome oxidase. Thus, elevated NO production leading to mitochondrial dysfunction, glutamate release, and excitotoxicty may contribute to neuronal death in neurological diseases.
Revue / Journal Title
Journal of neurochemistry ISSN 0022-3042 CODEN JONRA9
Source / Source
1998, vol. 70, no4, pp. 1541-1546 (29 ref.)

INIST-CNRS, Cote INIST : 4037, 35400007527188.0230

I also have a child who has been on this drug for about a month and as I sit here and read these blogs the more I am remembering complaints made by my son. He has been getting into trouble at school lately, irritable, angry, sad, leg pains, stomach aches and also having trouble getting to sleep at night. I am an RN and it took me to glance at the pill bottle today to realize that I needed to do a little more research about this drug when I saw that it said "mood changes and depression". I feel horrible because after a great 2nd grade year I was disappointed that he was not behaving as well this year. I know know that the $60.00 wasted and tiring reprimanding was all a waste of my time! I owe my poor son an apology as I will be taking him off of this drug today! More information and advocacy needs to be available especially when core users are children who have little to no voice!!!

d27gayle POSTED INCORRECT INFORMATION ABOUT THE SIDE EFFECTS OF SINGULAIR. I JUST COPIED THIS FROM MERCK'S SINGULAIR WEBSITE. THIS IS THE CORRECT AND UPDATED INFORMATION. THIS INFORMATION DOES LIST DEPRESSION AND SUICIDAL BEHAVIOR AS SIDE EFFECTS.

IF PEOPLE ARE GOING TO SHARE INFORMATION ON THIS SITE, PLEASE MAKE SURE IT IS CORRECT BEFORE POSTING!!!!!!!!!

What are the possible side effects of SINGULAIR?
The side effects of SINGULAIR are usually mild, and generally did not cause patients to stop taking their medicine. The side effects in patients treated with SINGULAIR were similar in type and frequency to side effects in patients who were given a placebo (a pill containing no medicine).
The most common side effects with SINGULAIR include:
• stomach pain
• stomach or intestinal upset
• heartburn
• tiredness
• fever
• stuffy nose
• cough
• flu
• upper respiratory infection
dizziness
• headache
• rash

Less common side effects that have happened with SINGULAIR include:
• increased bleeding tendency
• allergic reactions
• behavior and mood related changes
• drowsiness, pins and needles/numbness, seizures (convulsions or fits)
• palpitations
• nose bleed
• diarrhea, indigestion, inflammation of the pancreas, nausea, vomiting
• hepatitis
• bruising
• joint pain, muscle aches and muscle cramps
• swelling

Rarely, asthmatic patients taking SINGULAIR have experienced a condition that includes certain
symptoms that do not go away or that get worse. These occur usually, but not always, in patients who
were taking steroid pills by mouth for asthma and those steroids were being slowly lowered or stopped.
Although SINGULAIR has not been shown to cause this condition, you must tell your doctor right
away if you get one or more of these symptoms:
• a feeling of pins and needles or numbness of arms or legs
• a flu-like illness
• rash
• severe inflammation (pain and swelling) of the sinuses (sinusitis)

These are not all the possible side effects of SINGULAIR. For more information ask your doctor or pharmacist. Talk to your doctor if you think you have side effects from taking SINGULAIR.

My daughter was prescribed Singulair in the spring and it worked wonders.Since her allergies and asthma don't bother her in the summer I took her off for those few months.Since she has been back on the last few months I notice once and awhile an aggression/depression behavior.I thought immediately that it was Singulair causing this but it wasn't everyday it happened.I believe that activity,schedule,and even food in combination with this medicine that was cause this rare effect.It's no news to parents that all of these things can change a persons attitude and behavior.I also believe that Singulair may just make people more sensitive to their true self as my daughter has always been paranoid and has lacked self esteem.I think that it is trial and error as with any medicine.Try it and it may or may not work for you.Taking it off the market would be a disgrace as it has saved many lives.