Singulair side effects

Hi Everyone after reading all the posts and crazy medications everyone esp. kids and babies are taking I would suggest reading this book. It is called Healing the New Childlhood Epidemics and is quite interesting.
Written in 2007 by Kenneth Bock M.D. and Cameron Stauth it goes in depth the causes and healing of autism, ADHD, asthma and allergies. It is quite interesting as the causes of all four are similar and related. I am still reading it as my son just had ear tubes put in and always seems to be having sinus infections. Dr. Bock seems to have had amazing success by targeting detoxification, removing sources of inflammation, changing diet, etc. and transforming kids back into a healthier state. Hope it helps you.

my grand child is almost 3 year old , he has been on singulair candy for almost 6 month , what we noticed is a noticeable change in his behavior in the form of nervousness , he turned cranky , recently his teacher reported that he is not him as before , his appetite in that good as before , he became nagging while he was a sweet child before singulair .

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 took my very happy, sweet, polite four-year-old son to the doctor yesterday because he was coughing horribly during the night. Great during the day, hacking at night. He was put on Singulair. I didn't think twice about it, since I am on it and have had no problems (although I take it sporadically since I tend to forget!). I picked him up from pre-school today and was told that he was a completely different child. Rude, put in time-out multiple times, refused to listen. This is behavior that he has never had at school, and the only difference is the Singulair. I will not be giving that to him again!

I am looking for any information anyone has about the possibility that Singulair causes colitis or that it can lead to inflamed colon and bleeding colon. My daughter is 4 years old and has never been a sick child. In September, she started bleeding from her colon, and a month later, she was finally diagnosed with colitis after having a colonoscopy. The doctor prescribed Prednisone (steriod) and Phlagyll (antibiotic) (spelling?). I decided to stop giving her the Singulair that she had previously been taking because I didn;t want her to have so many drugs in her system as one time. After a few days of the steriods and antibiotics, she was well, with no signs of problems. Everything was going great for a few weeks, but last week I started giving her the Singulair again, and her colits symptoms have come back. Has anyone else experienced this in relation to Singulair?

My 10 yr old son has been on this medication for 3 months - it helped his symptoms right away. Just in the past week we had a couple days without it when we ran out. He started back up again and has had bad nightmares twice this week and told me that he doesn't sleep well at night. My question is - are their other drugs out there that work as well as this one that do NOT have these side affects? Zyrtec just made him tired.

My son is 7 yrs old with allergies and asthma. The Dr. prescribed it and the same day I had talked with a lady which her friends son just committed suicide. They were contributing it to Singular. A quick look up on the internet and I was angry with the pediatrician that the side effect was never discussed with me! After a very reassured conversation I said I would start him with 1/2 dose. I noticed nightmares started right away and I stopped. Asthma got worse decided to star again 3 weeks ago. He started twitching his head, flipping his hair that isn't even long. He was also complaining of stomach aches and not wanting to go to school (very unusual)! He has been off for a week now and is hopefully will not ever have any long term effect! Please follow your instincts and I will let his doctor. know what the side effects were.

I have a 15-yr old. She's been taking singulair since she was 7. These are a few of the things that I have noticed over the last year but ignored because I too, as many of you have, thought it was because she a teenager.

1. Stomachache .. she complained all the time. Thought it was nerves because it was usually before she went to a training session or game.
2. Restlessness.
3. Headaches.
4. Moodiness.
5. Tired. Fatigue. Weak. Even after she gets hours and hours of sleep. Figured it was because her schedule is whacked. We've had fights over her not going to bed at a certain time.
6. Menstrual cycle changed last fall followed by acne when as before she was perfectly normal with clear skin. Recently put her on BC because of her hormonal change. Blood tests showed she was normal. We tried it anyway to regulate her periods. Took her off of it after she had her period for 3 weeks straight. Probably won't put her back on BC since taking Singulair might be the problem.
7. Tired all the time. Falls asleep in class.
8. Lost interest in her favorite sport which she rocks at. Thought it was because of a 2-month down time due to an injury.
9. Several times, have seen signs of depression but when confronted she says no she's fine. Depression is probably from being unhappy with her appearance. Being on the pill made this worse.
10. Doesn't want to go to school. Whereas before not a big deal. Most kids don't like school, but lately, she talks about how much she hates it. Usually excited to start the new school year, this year not so much, more like dreading it and her attitude hasn't change about it.
11. We argued last week and it was the first time she screamed at me and told me she hated me. She's never done this before. Her thoughts and moods have been horrible but they come in spurts.

After reading everyone's experiences, I am taking her off Singulair. I know it's not an overnight cure and will take some time, but I just want my little girl back. I find it strange that this all occurred within the last year even though she's been taking Singulair since 7. Do you suppose it's in teenagers and puberty?

I have been taking singulair for about a year and a half. Honestly I have had no side effects. It works great for me. I have tried to just take my zyrtec for my allergies without the singulair. I notice that if I don't take the singulair I feel shortness of breath and have to use my inhaler. When I combine singulair with my zyrtec I don't even need my inhaler at all. I was reading some of the experiences from other people, I think maybe children shouldn't take singulair at all.

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 was put on Singulair two weeks ago and since then I have have experienced everything from hyperactivity and insomnia to flu symptoms and loose bowel movements. I contacted my doctor after 3 days because I was having tingling in my hands and feet, flu symptoms, cramping etc but no fever and otherwise fine...He said the benefits outway the side effects so take half. I continued to take half. The cramping reduced and so did the other physical type side effects, but I started feeling like Superwoman. Instead of sleep I sterilized my house, wrote emails, tended to laundry, etc...and then continued my normal day with a smile and pep that I would not expect. I really had no desire to eat. The thought just made me cringe. After two days of no sleep and hyperactive state I decided I am done. I stopped taking it...and I took my son, 6, off it as well. He had been taking it for 4 years and was presenting with signs of hyperactivity. It has been one week...he turned yellow, became more hyperactive, talked about how the man in his room is gone now. He had struggled with sleep since he started Singulair but there were no side effects at the time that listed bad dreams, hallucinations, hyperactivity etc...It has been one week and we watched our son turn yellow as he withdrew ...he could have been spider man break dancing on the ceiling for the first few days. His teachers and even the bus driver had sent home warnings about his behavior "can't sit still" ...the last 3 days of school he has been on "green" which means great behavior. I do not think anyone should give this drug to kids...and it should not be given in sample forms either to any doctor trusting patient...without a full discussion of these side effects. I feel like I just went thru hell and put my son thru hell.

My daughter was put on Singulair 2 weeks ago after discovering she is allergic to 4 kinds of trees that are pollinating in the fall and a certain mold that grows in corn and bean fields. Everything was going well until she got an ear infection and was put on the antibiotic amoxicillin which she has used off and on when she's had ear infections over the years. She then broke out in the hives. She has never had the hives before. I'm guessing it could be a combination of the two drugs. Why aren't doctors aware of this before prescribing this medication?

Oh my! I've been having severe anxiety since i've started singulair. The anxiety leads to shortness of breath which is extremely scary r someone with my medical condition. I had to have valve replacement surgery 4 years ago so I am very sensitive to any abnormal feelings I have. I took claritin d or about 8 years and I wanted to get off this drug because of the pseudoephedrine. I am off this drug starting tomorrow and will take regular claritin without the pseudoephedrine. The anxiety I had was so great I might actually consider legal action.

I've been on and off singulair for several years. I had a horrible bout of bronchitis that then triggered bronchial reactive disease and I now have allergic reactions to certain chemicals (some spray deodorants, etc.) Singulair worked so much better for me than advair, I was thrilled to be able to talk and breathe. As a teacher I would sometimes have to stop the lecture to get my breath again and drink some water if I inhaled the slightest amount of chalk dust or something.

After reading the comments on this website I am going to discontinue taking singulair. I used to be this skinny person and never, ever worried about my weight. At the age of 37 I had a rip-snortin' major depressive episode with insomnia that had me miss 3 days of sleep (this is on no medication of any kind) and panic attacks and suicidal thoughts and impulses that I'd never had before. Imipramine was my first prescribed med (in 1991) and worked like magic. It cheered me up, calmed me down and made me sleep. I went from 135 pounds to 155 pounds in just several months. I finally got switched to effexor and trazodone, but there's really not been much weight loss. I'd hover around 150-160, but then with singulair added in the last several years I am 170 lbs. I can't believe I am a fat person now and do not over eat. I can't go off my psychiatric medication because it runs in our family and if I taper off I am...uh...crazy. My insomnia is tenacious when I am without medication and then that makes depression and anxiety worse. I never want to have a panic attack again.

I just ran out of my singulair prescription about a week or two ago. I am breathing and speaking fairly normally and my husband and I now have to pay for our own health insurance which is exorbitant and I just didn't feel like renewing the prescription in order to save money. I was pondering my weight gain today and just decided to google singulair and weight gain and I just can't believe it.

I have also experienced hair loss, but my hair is so thick it still looks basically the same. My husband and I have noticed over the last several years that I lose lots of hair after I wash it and there is a mass of hair in the shower stall.

My memory may have been adversely affected by taking singulair. I thought it's just getting older. I am 55. It's been the last several years that I have started to have problems remembering things. I have always had to work with my husband in helping him remember things (it's been life long with him: he is an absent minded professor. He has a genius IQ, is an M.I.T. grad, is an excellent engineer and can't remember his mother's birthday, what plans we have for the week-end, no matter how major, etc. to save his life.) I feel like I am becoming more like my husband in being hopeless and helpless about remembering what's happening from one day to the next. It could very possibly be the singulair. There has been a marked difference in my memory over the last several years. It is embarrassing. I sub for the school district and once showed up on the wrong day at a school and another time didn't show up and they had to call me up and get me out of bed to go to work. I also teach piano and never used to forget who was coming when. Again, I don't know if I can blame this on singulair causing memory loss, but there would be times when someone would knock on the door and I'd be surprised to find a piano student standing there. I feel like I am getting Alzheimer's. My grandmother had it for 17 years. My mom has always been afraid of getting it but she is 80 and is just now starting to show signs of real forgetfulness. I explained to her what my lapses in memory are like and she is shocked to hear that they are similar to hers. My mind just will completely go blank. I will have this thought, get distracted, and just a moment later will struggle to remember the previous thought and there is just a void, peace, blankness, white screen in my mind. Maybe it is getting older, but maybe it's the singulair. Since I'm just recently off it I'm going to pay attention and see if my memory improves or if it is just old age.

Also, my joint problems have been nearly ruining my life the last several years. I don't know if this is exacerbated by my singulair use or not. Bursitis in the hips runs in my family like crazy. We re-sided and painted our house several years ago and my bursitis started to flare up and has been bad since then, but it's also about the time I started taking singulair. I had to quit a sales job this summer because my bursitis has become so bad. Sometimes I can hardly walk. It is nearly unbearable. I get cortisone injections every 6 months, but need it every 2 months. I wonder if my discontinuation of singulair will ease my joint pain? I'm going to track that as well.

For me: weight gain, hair loss, joint pain, some dizziness are possible side effects from singulair.

Thank you to everyone who has contributed to this site. I am never taking singulair again.

I visited (accidentally) this web site a little over a year ago...it was a total blessing and, I feel, a life saver!!! Our grandson Trevor was totally out of control and talking about killing people and himself at the age of 4 yrs old.
One phone call away from calling a therapist, I saw this and we took him off the Singulair immediately. He has been 1000 times better and not depressed anymore. This is a totally true story and I'm so glad to spread the word. T***'s Grandma

for about a week I can not read the replays to people's posts. Can it be fixed please? My son is on week four being off singular. There are good days and bad. Hopefully we are heading toward more good. I think what I have noticed is he does better with extra sleep and vitamins.

What a great website....My 2 year old son has been taking singulair for about 1 month, I know that he's having nightmares, his appetite has decreased substantially,and his behavior is unusually aggressive (I thought it was bad behavior picked up from day care...) I'm really having second thoughts about this medicine. confusing...this medicine does break up the thick mucas leading to labored breathing attacks...this is worth investigating more....what to do to have ur child diagnosed and treated properly.

hi i came across this site through sheer desperation to find out if all the terrible symptoms my 13 yr old daughter was experiencing was through any of her asthma/allergy meds She has been on singulair since she was 5yrsold . But gradually over the past year her symptoms are that bad that she has weeks off school with dreadful headaches, stomach pains, mood swings which have been going on for last few years but put most of these down to puberty kicking in (but how i think i was so wrong). she has an allergy to peanuts which has been confirmed through tests but i was finding that lots of different foods were causing allergic reations which i could not understand(put it down to e numbers etc) she has been off this last week through yet again more headaches,chest infection, nausea but now the most terrible symptom is that of very painful ankles. knees, which are that sore she has been in tears.Since reading these post i am going to take her off the singulair but will do it at a gradual rate 1/2 tablet then 1/4 etc as she has been on this for a very long time and sudden withdrawal seems to be very risky. oh i also forget her rhinitis is also a major problem which causes her to be terribly bullied at school due to how noisy her breathing is and her snuffling being so often and seems to be getting worse. I am very grateful that i have come across this website.

Regardless of whether singular has weight gain listed as an "official" side effect, singular is: Montelukast Sodium (generic name), meaning, sodium is sodium, is Na+! Edema & weight gain WILL occur is individuals sensitive to sodium's effects.

After beginning Singulair, my daughter (age 6 at the time) had tantrums unlike she had ever had (completely inconsolable), scary dreams with guns and knives, that people were chasing and killing her; complained of leg pains, stomach pains with nausea, headaches, hearing bells (I couldn't hear them), itching, and said she wished she could be dead; that if she had a gun she would kill herself. I attributed it to being adopted, and got her into therapy. The fearfulness at night has not stopped, and at times she is still aggressive with me. I am taking her off the Singulair today! She is now 7. I feel so guilty, and so angry at her pediatrician who treated me like I was a hysterical mother when I called him about these symptoms showing up over a year ago!!

FYI: As of Friday, October 2, The website of the Merck sponsored Time 2 Talk Asthma education campaign no longer links to Singulair's website and coupon.

I ONLY BEEN TAKING SINGULAIR FOR 5 DAYS AND I BEEN DAZE AND OUT OF IT AT WORK,I BEEN VERY TIRED LIKE NEVER BEFORE AND AM IN SHAPE WORKOUT 4 TIMES A WEEK.MY DOCTOR TOLD ME TO TRY IT DUE TO MY CRAZY ALLERGIES AM ALSO GETTING HEADACHES,AM GONNA STOP USING SINGULAIR TODAY 10-1-9. I WILL UPDATE HOW AM FEELING IN A WEEK.

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 51 and have been taking singulair for a few months. Recently, I have been having trouble concentrating and felt overwhelmed by stress at work and in my home life. I even started seeing a counselor to see what was going on and learn stress and relaxation techniques to help. She said from the sound of it I was mildly depressed. All sounds good, but was getting no better.

Last night, I was getting ready for bed and out of the corner of my eye I spotted a sticker on my singulair prescription that said may cause depression or suicidal thoughts.

May not be related, but the timing is pretty much the same for me - for switching allergy medications and my feelings of anxiety and depression. I will stop taking singulair and see if that does anything. Maybe the heartburn I have been having will get better too.

FYI: "Supernanny" Jo Frost and asthma advocacy organization AANMA have partnered in an asthma education campaign sponsored by Merck called Time 2 Talk Asthma. The website links to Singulair's website, which offers a coupon.

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.

My nine year old started taking this horrible drug less than a month ago. Since then, he has has horrible mood swings, screaming fits, told us he hates us, emotional breakdowns and even threatened to kill himself. He is a bright, intelligent, active and usually a normal nine year old. Over the past month he has been in a physical fight at school where he punched a kid for telling him he was annoying. He has also been in a ton of trouble at school which is not like him. I was so worried until today. My Mom recommended that I check the side effects of his asthma medication. I am astounded and angry at what I am reading. His doctor is supposed to have his best interest in mind and we trusted her. She was the attending physician at a hospital where we live. My nine year old was hospitalized with asthma. Although his asthma needs to be controlled, not at his emotional expense. There has to be a better way...

Please send your complaints to the FDA....

http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm049087.htm

I've noticed that my 13 year-old son have developed some repetitive rapid eye movements and a compulsive vocalization similar to a brief laugh since using Singular. Has any other reader experienced similar behavioral side effects in themselves or a child they are caring for while using this product?

I am 30 years old and have bad allergies. My doctor gave me a week worth of singulair as a sample. I took it last night. I woke up at 5 am thinking and worrying about the smallest things. I couldn't fall back to sleep. At the same time, my stomach is killing me... I feel like throwing up and have bad diarrhea... I will not take it anymore.

can someone please tell me how long it took for their child's thought to return to normal? My son has stopped singulair four days ago after reading this website. I had ruled out everything but could not find out what was wrong. After putting in his symptoms and that he took singulair i couldn't believe that I found it matched. He had stopped taking it for a month and had started back up on it. Please respond to a nervous mother of an eight year old who was a happy child who now had thoughts of knifes and scary thoughts

my son has all the symptoms that people have discussed and i would not have found it if he had not hit his head and started to have weird symptoms and after ruling everything out realized that he had been off singular for a month this summer and had started back up. He has had a lot of symptoms but I always thought it was something else. Like everyone said everyone felt that singulair wasn't a problem. I remember when he was little he was having night terrors and the doctor switched it to the day time which made it better but he has always had a hard time sleeping since he started. he has been off it for four days how long does it take before the thoughts come back to normal. If someone could answer it would be great. i am so upset right now as I am sure the other parents are that our children had to go through this.

I took my daughter (14yrs old) off of Singulair 2 nights ago after being in the ER. She's been taking this drug for 3 years off and on. We were told she had asthma 3yrs ago and now yesterday after taking the Methacholine challenge test, she doesn't have asthma. Talk about being confused and angry. Over the last three years my daughter changed into a very anxious person, couldn't sleep at nights, very vivid dreams that made her surround herself with pillows thinking her dreams were real, sadness, chest pains, tingling in hands, arms & legs, knee pain (could be sport related?) and a very short fuse. I came across another website and then this one about the side effects of this drug and immediately took her off. She has slept better the last two nights but still has a little chest pain (indigestion), which I hope subsides soon. This has been a terrible stress for her and the whole family and I'm praying being off this drug will help my daughter restore her self confidence and happiness in her life.
A.

My allergies caused nearly constant painful sinus pressure, drippy nose (I should have bought stock in Kleenex to profit from my box-a-day use), asthma, getting gradually worse all the time--it was as though I'd had the flu for 10 years (I'm 54). I was taking Claritin in the morning and Zyrtec at night, which only toned down the most severe symptoms. I was on Prilosec as well, as one doctor though acid-reflux might exacerbate the asthma. My family and I are avid hikers, but I haven't been able to breathe well enough to join them for years, even with daily Ventolin and Flovent. I've only been taking Singulair for two weeks, but it has made all the difference. I feel "normal" instead of sick for the first time in a long time. So, for me, it does work. But my stomach's been killing me--like a bleeding ulcer (which I had 25 years ago). I'm hoping that will subside or going back on Prilosec (expensive!) will counteract it. I've also had the weirdest dreams--very vivid and disturbing. Because I did research online before taking Singulair (Doctor uttered not one syllable about side effects), I recognize the dreams are from the Singulair. Because I understand what is causing them, I can easily set them aside when I wake up. I think anyone who's had mental or emotion problems could be sent over the edge by the dreams unless they had a clear understanding and acceptance that the allergy drug caused them. I would be easy to think something was wrong with you to dream such bizarre, violent stuff. (I'd give examples, but I've truly trained myself to forget all about the dreams as soon as I wake us, so I don't remember the dream events now.) I'm quite concerned about children taking this drug. Maybe not everyone has this disturbing-dream side effect, but how could you explain them away to a four-year old? How would you even know if a younger child was having them? Even children old enough to comprehend shouldn't be subjected to horrific mental images, like the 16 year old above. A tip for people who Singulair helps, but they have the weird dreams--try Melatonin (over-the-counter supplement) at bedtime. I've used it to help me sleep in the past when life events kept my mind too active to sleep for several days at a time. Unlike sleeping pills, it doesn't make your tired the next day, you can wake up easily, and it's not habit-forming--it just lets you drift off on days you otherwise can't. Since I'm concerned about the long-term effects of anything taken frequently, I don't take Melatonin very often, but I did try it after the fourth day of Singulair dreams. I had no memory of weird dreams when I woke up, so it seemed to work, and I didn't remember dreaming the next night either. I only tried it that one day because, as I said, I've trained myself to not be bothered by the dreams.

I went to my doctor last tues 'coz of shortness of breath. She found nothing & told me maybe i have anxiety. Told me to continue taking Singulair however since taking it last Saturday until now I still have the shortness of breath plus i couldn't sleep at night, i felt that I'm going to cry. After reading some of the experiences in this site I will stop using Singulair tonight & see what happens.

hi my name is T.im 17 and i have had severe asthma and allergies since i was 2. i was put on the singulair drug when i was 10 i started having nightmares about my percents dying and severe depression and anxiety.my parents thought it was just a phase kids go through.i realized all this didn't start happening until i started taking the drug, so i refused to take it anymore. well now im 7 years later my parents EMT,and pulmonologist.think its a wonderful idea to start taking it again so my parents give it to me and make sure i take it each night,bc my allergies are so bad. ive warned them once,but i guess they will all see what happens

I was on Singulair while pregnant because my asthma got worse while pregnant. Postpartum I noticed my 2 month old breastfed baby was still sleeping way too much and very colicky. I tried cutting out dairy and other allergens but nothing made a difference. When I forgot to take my Singulair a couple days in a row, I noticed my mood was much improved and the anger/irritability went away. Finally, after noticing I was having vivid, bad dreams, I began to realize it might be all from the Singulair. I also had developed a stiff, tight neck and vision loss, which I now realize was also from being on Singulair.
I went off of it and must say, that was the worst week of my life. I never felt so horrible or out of control. Although I noticed the first few days, I was happy and feeling again (it made me emotionally numb) by the fourth day, I began having heart palpitations and bad headaches. I quickly got my thyroid levels checked and those were fine. Then I suddenly had severe panic attacks! I thought I was going crazy! This was mistakenly misdiagnosed as PPD, although I was never even depressed. I was given a script for Zoloft and took Ativan but that didn't take away the panic and the Zoloft seemed to make the panic worse!
I began researching and realized all of my symptoms were from Singulair withdrawals! Even my family noticed I became a mean and hateful person with this last pregnancy. This drug is an awful poison! I am slowly recovering and feeling better everyday. I'm using my fast acting inhaler for the time being. Instead of the therapy I thought I needed for PPD (mis dx'd obviously) I'm also using herbs to treat this homeopathically with a natural doctor since conventional ones still want to pass it off as something it is not due to ignorance that an asthma medicine can wreck this kind of havoc on a person! They just want to use more drugs to treat the side effects of another drug!
I am so angry I took this while pregnant and breastfeeding being told it was okay. It was not okay and I hope and pray there are no long term side effects to my child from this drug!

My 3-year old daughter just took her first and last Singulair today. Within 3 hours: crazy mood swings for no reason, uncontrolled anger, bad dreams during her nap time. I didn't recognize her. She's been on Zyrtec for 2 weeks and showed improvement with her allergies and no side effects, but for some reason I let the doctor talk me into trying Singular today. I just threw the Singular in the garbage. Back to Zyrtec tomorrow.

I started taking singulair about one week ago and I started not sleeping well , waking up at 4 or 5 am focusing on stupid things like what I had forgotten to buy at the grocery store. I first thought I was pregnant since I suffered major insomnia during my first pregnancy, took a pregnancy test and after seeing the negative results started asking myself what could cause that, that is when I realized I started Singulair about a week ago. I will stop it today and see if I sleep better. I am allergic to dust mites and dust, it is pretty bad sometimes and it will give me asthma. I was using an inhaler before (Alvesco a couple times a week) and did not experience any insomnia. The doctor told me Singulair was very similar but it would also take care of my sinuses. It works really well for the sinuses and the asthma, but I rather have a stuffy nose, no asthma and sleep well. I am very surprised to see that some of you have been using that drug for so long after having so many side effects... and with children too...it is really scary

Thank you everyone for your experiences w/ Singulair. I just took my son (11years) to the doctor today for his allergies and asked about a possible new medication because Zrytec has not been working all that great for him. Well, he gave me samples of Singulair and my son took his first and LAST dose today. He doesn't have asthma but suffers from airborne allergies which are a huge problem here in Texas. I am just going to give him Claritin or another over-the-counter allergy medication. Thank you so much everyone! Oh! With one pill, my son's stomach was really hurting him....never again Singulair!!

Regarding Singulair's label change (described in the next post), the term "somnambulism" means sleepwalking.

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 36 year old woman, and I have taken Singulair for the past 8 months. I got a lung infection over the winter, and the clinic I went to put me on the 10mg Singulair. It helped my lungs and got me over the worst of the infection, but I never anticipated the side-effects. For several months, I attributed what I was feeling to hormones (like severe PMS) and the stress in my life. I started to have thoughts of death, especially at night. I also began to have a hard time leaving my house. I would have panic attacks, worrying that the window was left open, the stove was left on, and god forbid there was a dark cloud in the sky (I became convinced that a terrible storm would come). Several times, I nearly got in a car accident racing to get home after work. Then, I started to obsess over getting sick. I was convinced that I would get some terrible disease and die soon. The fears and anxiety got worse and worse until one day (a rainy day), I quit my job of twelve years. It was a good job. I was happy with my work, and I made more than enough money. I ended up moving across the country back in with my estranged husband, because here I would not have to work. I could stay home all the time, away from germs and storms and anything else bad. That was three months ago. Still on the Singulair, I began to obsess over death. The panic attacks were so severe that they triggered asthma attacks, and not being able to breathe triggered more anxiety. I stopped sleeping at night. In three months, I've slept four nights. I began to have nightmares that made me wake up screaming and violently lashing out. I had to urinate 5 or 6 times every night. I developed severe stomach pain and nausea. And I had leg pain (actually, I hurt everywhere, severe pain). I had headaches, dizziness, and fatigue. Slowly, I began to realize that it might be the medicine. I started to research, and yesterday, I took my last pill. Since then, I have not had one panic attack. I have not had one asthma attack. I slept last night with no bad dreams. I know what's happened now, and I'm so sad that I lost so much of my life because of this drug. I really had a good life...friends, a home, a great job... Now, I'm very tired. My body is very weak and still hurting. I'm shaky. But I believe in time, those effects, too, will go away. I feel like my body has been through a war. I'm grateful that I didn't kill myself. There were a couple of really bad days when the urge to be violent towards myself was overwhelming. One day, I punched a fence, making my knuckles bleed. I think I could've killed myself, and I know it was Singulair. It's going to be better now. Just as a note: what helped me withdraw without any major worsening of asthma was Advair 250/50 twice a day.

My daughter who just turned 6 has been on Singulair for about 3 years now. Her behavior has not always been the best, but with her past medical history ( a preemie) and all the things we have gone through some times its just easier to give in than to fight over it!!! So last week she was suffering with her allergies and asthma and the doctor added a Claritin to be taken once daily. I didn't really think to much about it and thought well if it is going to help her the OKay. That was on Wednesday and by the week end she was literally coming "unglued". She was lying on the floor when she should have been in her seat at the dinner table. When she was in her seat she was doing "back bends" over the chair. We finally come to the conclusion that it had to be the Claritin, I looked up the active ingredient loratadine and knew I had to get her off it immediately. So now I started to investigate the Singulair as well, which I should have done long ago. Today will be the last day she takes Singulair as well. She has complained of her stomach hurting for a long time and I always blamed it on constipation, but it could be the Singulair. I can only pray that she will not have any lasting side affects.

I have an 8 yr old son that has allergies and asthma. The allergist recently prescribed Singulair which my son had taken when he was 5. We took him off of it back then due to anger outbursts. By the way, the Dr. said that was not a side effect, but nonetheless the issues subsided. When it was recently added back to his medication list, within 3 days he had anaphylactic type episodes 2 days in a row. The attack started with stomach pains, chest pains and then he couldn't breath AT ALL and turned blue! There was no time to call 911 so I gave him an Epi Pen. The attacks are still occurring yet milder and all his Dr.'s swear by Singulair and think I am crazy. I took him off Singulair immediately and we are still waiting for it to leave his system. I think that is why the recent episodes have been milder. He has been tested for all sorts of allergens which he did not come in to contact with prior to the anaphylactic events. We still have no answers and if I hear one more Dr. talk about how great Singulair is, I am going to freak out!! To heck with these drug companies and doctor's who get perks for prescribing medications without informing us of side effects.

i am 41 and i had been taking Singulair off and on for a few years. i had noticed that something was different about me but never related it to the medication. i always had a sinus infection every year, i stated having headaches and really depressed and didn't understand why. i stopped taking the medication and went and got me some Zyrtec and i have been doing just fine.

I have had an excellent experience with Singulair. I am 59 years old and have allergies and a touch of asthma. Singulair keeps my allergies at bay and I no longer get sinus infections!!!! Thank you Singukair

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.