Reviews for SINGULAIR

479 ratings: (age 12 or younger)

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 ANTIASTHMATICS BRONCODILATORS

 Type: Rx Drug

  

SINGULAIR  (MONTELUKAST SODIUM):  Montelukast is used regularly to prevent the wheezing and shortness of breath caused by asthma and decrease the number of asthma attacks. Montelukast is also used before exercise to prevent breathing problems during exercise (bronchospasm). This medication can help decrease the number of times you need to use your rescue inhaler. This medication is also used to relieve symptoms of hay fever and allergic rhinitis (such as sneezing, stuffy/runny/itchy nose). This medication does not work right away and should not be used to treat sudden asthma attacks or other breathing problems. This drug works by blocking certain natural substances (leukotrienes) that may cause or worsen asthma and allergies. It helps make breathing easier by reducing swelling (inflammation) in the airways.   FDA Approval Date: 1998-02-20 (Sources: U.S. Centers for Medicare Services, FDA)

  

Results are sorted by Date added.

Key to Ratings: 1=LOW (I would not recommend taking this medicine.)
5=HIGH (this medicine cured me or helped me a great deal.)

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More on SINGULAIR: Reviews Summary  |  Drug Safety Information

RATING  REASONSIDE EFFECTS FOR SINGULAIRCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
 
 2  Severe Seasonal Allergies Anger, Aggression, Hostility, Moodiness, Spaced out, Decreased Appetite, Irregular Sleep. I also noticed his face has blanched, eyes have dark circles, and he has been chewing on his hands constantly. (something he never does) My son started taking this medication only a few days ago due to severe uncontrolled allergies. Since beginning this medicine, my son has had severe mood problems that I was attributing to a cold he caught a few days before the Singulair was prescribed. In only 5 short days I my child changed from a sweet and usually happy go lucky little boy to an aggressive and emotional mess. He stopped napping, sleeping like normal, and he has lost his appetite altogether. He yells at me, screams NO to everything I say, and he has been chewing his hands constantly for the past 3 days. The temper tantrums haven't stopped since starting Singulair. I know he has only been on the medicine for 5 days, but the fact that I noticed such a big change in his behavior to google search "singulair behavioral problems" should tell you something. Effective immediately I am taking my child off this medication. While it has been the only thing to help his allergies, it just isn't worth the side effects. M 3 5 days
4 1X day
10/9/2010
 5  Asthma My son was a bedwetter nightly until age 9 until his asthma improved and the Dr took him off of it at Christmas at which time he stopped wetting the bed nightly. I had taken him to speicalist for it and was told he would out grown it. Well he just recently put back on it for allergies and he started wetting the bed every night again. M 10 3 years
20 1X day
10/1/2010
 4  chronic asthma My 2year old son has been taking singulair for his chronic asthma. It really has control his asthma attacks to where every weekend I would spend time in the hospital and now he has not have a attack since on the medication. However, I have notice a dramatic CHANGE on his behavior..at first i thought he was just acting out for a attention... but i realize how it has gradually led to his dramatic change. He doesnt nap and wakes up at night, he also cries a lot at during his sleep. He has been very aggressive during play. He refuses to listen to listen and has many outburst yelling and jumping. My son was very shy and quiet. He was very humble and I'm glad I read comments on this website because I am going to speak to his doctor about it and want him off the medication. Its not worth your child not being his normal self! M 2 4 months
1X day
9/28/2010
 1  ASTHMA My 7 year old son has all the same symptoms I see described here. Excessive throat clearing, bad dreams, trouble sleeping, nasty outbursts, crying, mood swings, defiance, upset stomach/diarrhea, etc. I can't believe I didn't figure this out before. I wondered why he had changed so much, I figured it was some kind of acting out because we moved last year to a new town...after a while, I figured he would adjust, but he didn't. He had never acted this way before. I'm convinced it's this poison the doctor has him on for his asthma. Thats enough of that. I'm stopping the Singulair immediately and won't use it again! It turned my son into a monster. Hopefully he will get better now being off the medicine. F 7 2 years
1X day
9/27/2010
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 1  asthma/allergies After stumbling upon possible side effects of Singulair and finding this website, I took my 6 1/2 year old son off Singulair. He had been on it for almost 3 years. It has taken almost 6 weeks to see him "evolve" into a "normal" child. He cried off and on for the first 2 to 3 weeks and I was starting to wonder if I had done the right thing. It turns out that I have. I am dismayed beyond belief that not a SINGLE MD or RN never suggested that this drug could be causing these issues ("I dont know whats wrong with my brain, there is something wrong with my brain mommy!", bouts of solitude, angry outbursts, uncontrollable behavior,constant throat clearing, etc...)in my bright and loving son. I am more dismayed with myself that I never put 2 and 2 together, he was put on it at such an early age. Never again will I give my child something without first researching the side effects. This drug is toxic to children, and from what I have seen, male children in M 6 3 years
5 1X day
9/19/2010
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 4  seasonal asthma/allergies Terrible leg cramps at night. My now 11 year old son was prescribed Singulair by our Allergist for at least 3 years starting from age 3 to 6 with NO problems, except after reading these posts, I now realize he did complain OFTEN of horrible leg cramps at night. We relayed this to the Allergist and was told it wasn't from the Singulair while I believe in my heart it absolutely was. The leg cramps would wake him out of his sleep and we'd have to rub the cramps out in order for him to go back to sleep. WOW! These are truly horror stories and I don't think I will ever put him back on this drug if his asthma flares up. He's been Singulair free for years so I would have to say it did help his Asthma/Allergies. M 11 3 years
4mg 1X day
9/17/2010
 1  Allergies Aggression, zoning out, angry, mood swings...and more. My 4-year-old son has taken Singulair for one year. While his allergy symptoms improved somewhat, his personality completely changed. Yesterday I was checking on some other things and happened to stumble on this site. I felt like I was reading my son's story over and over again. He became very aggressive and defiant. He became very anxious about random things. He would obsess about things. He began doing things that were off-the-wall and mean, and when I asked him why, the answer was always, "I don't know." He began repeating himself constantly - both in a stutter-like manner (repeating the same part of a sentence over and over and over) and also repetitive if I didn't respond to him immediately(which really annoyed me). He never seemed happy...always brooding, even when getting his way, things weren't right. This may sound ridiculous, but in one day, he is 100% better. His teachers said, "He was a completely different child. He got along with everyone, was helpful, happy and patient..." Since we've been home, I have not had to ask him more than one time to do something (which I have had to do more times than I can count...it would usually take me asking 5-7 times and getting pretty angry to get him to do something). He has been relaxed and happy. He has not gotten upset for no reason. He has not repeated himself (in any fashion) one time. I'm praying the day isn't a "fluke," but I feel certain it isn't. M 4 1 years
4 mg 1X day
9/13/2010
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 1  asthma My 12 year old son was recently diagnosed with Asthma and was prescribed singulair. He rapidly changed in behavior, going from a happy, social kid to a depressed, sad, angry, anxious kid. He has mood swings, crying for no reason, sadness, says he doesn't care about having friends anymore, he doesn't want to live this way. Naturally, we were terrified. We could not understand what was happening to our son. Took him to the doc today and she took him off the singulair. I am praying that this will be the turning point for him. M 12 2 months
5mg 1X day
8/30/2010
 1  asthma & allergies sleepwalking, night terror, mood changes, no self esteem, anxiety My 6 yr old son has been taking singulair for 2 years and I am just putting together all of the problems he was experiencing with the meds. He starting showing changes in his mood, nightmares, sleep walking, saying he hates himself, anxiety that something were going to happen to his family etc. It has gotten increasingly worse within the last 2 months so I started looking into what could be causing it. After coming across this website I called his allergist and was told to stop the medication IMMEDIETELY! My son has been off the meds for 3 days now and we are starting to notice slight changes in his sleep and behavior. Lord willing my sweet little boy will be back to normal soon with no lasting effects from this drug. It makes me sick to know I was giving this drug to my child for 2 years. M 6 2 years
5 MG 1X day
8/27/2010
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 3  allergy induced asthma Excessive weight gain/sleeplessness My son is 9 years old and has been taking Singulair with wonderful results for his asthmatic reactions, however, he continues to gain weight. He is now in JFL with hard workouts nightly and decreased food intake, and he is still gaining weight. He also has a "moon face" which is charasteric of steroids - which Singulair is supposed to have in minute quantity. We are very concerned. His doctor says Singulair should not cause weight gain - but after reading, I think it does. My son also does not sleep more than 7 hours/night. He says he can't. I am thinking about other options at this point. M 9 2 years
5 mg 1X day
8/24/2010
Email
 1  Asthma I put the pieces together last night. While I was describing my 11 yr old son I was saying things like "driving me crazy", bursts of tears for unknown reason, "I don't care comments about activities that he has always loved, exhaustion, anger, When I ask my son what is going on with him all I get is tears and "I don't knows", I look at him and he just seems so sad and depressed. This is not the kid that I know.. As I started thinking about these behaviors I was trying to figure out how long this is been going on and I realized it has been happening since beginning this medication. As I was reading all these posts I started crying.. Why did I not think of this before. As a mom and a nurse, I should have recognized this. I will be talking to his doctor today and he will not be taking this anymore..crossing my fingers.... M 11 30 days
1X day
8/24/2010
Email
 1  Asthma My 5 year-old son took Singulair for about 6 months. He started Kindergarten around the same time as starting the Singulair. From being a happy, focussed little boy he became extremely violent, anti-social, un-cooperative towards his teachers. He would lock himself in the bathroom, urinate in the playground and draw violent pictures. His allergist recommended that he stop the medication immediately and it was like turning a switch, he went back to being his happy normal self again. My 12 year-old son has taken it for 7 years without incident however. M 5 6 months
4mg 1X day
8/23/2010
 5  asthma/ night TERRORS NO side effects My son is 4 1/2 years old, he has been having night terrors 2-3 episodes a month since he was 2. he was just diagnosed with asthma(R.A.D.) and has slept through the night ever since, this medicine is the answer to my prayers. He has also been on xopenex. M 4 2 months
4 MG 1X day
8/18/2010
 3  allergies moodiness,aggressive,angry My son has been taking this for the past 2 months and my husband & I couldn't figure out why he was throwing temper tampers, started hitting when he got angry, aggressive behavior. He has always been a good nice kid, we figured he was going through a phase and thought it was part of his growth spurt process. More time outs & the restrictions increased. We were at our breaking points. Then I thought about the possibility of side effects from his medication. On my side of the family it is very common to have side effects from drugs,so I looked it up & thank GOD for the internet! Like other parents, our pediatrician did not warn us of the possible side effects. I am taking him off the medication & hopefully we will see results soon. I am so.... glad to have found this site and thank you to all the parents who have shared their stories. I now know we weren't alone. M 6 2 months
5 1X day
8/17/2010
 1  Asthma My son is extemely aggressive toward family members and his Mom. He jumps on her in bed and wrestles very violently with her. He is laughing the whole time, so it is not malicious; but he does act insane sometimes. He started with facial tics, eye rolling, and throat clearing a week ago, and I am very conerned that he may have these socially awkward habits later in life. After reading some of these postings, we are taking him off the Singulair today as we think that these tics may be due to this medicine. M 5 6 months
1X day
8/9/2010
 1  Allergies Massive temper tantrums, aggressive temperment, unable to please My 2 year old suffers from allergies and the ped. gave us this. I noticed a change in her behaviour but thought it was because of the allergies and not feeling well. The medicine worked, but she was very hard to handle. I took her off of it to see if she would go back to before, and her mood improved within 2 days. Since then, I have put her on it when the allergies act up...I can definitly say it changes her mood drastically. I will never use it again. She goes from sweet and silly to one seriously mean, cranky, irritable child. Done with this stuff. F 2 6 months
2.5 1X day
8/6/2010
 2  Allergies - to control asthma Anxiety, anger, fear, paranoia My daughter was on Singulair for about a year and became a different person. I didn't even make the connection with the medication, but then stumbled upon this site and starting putting two and two together. In November, I posted here and wanted to update: I took my daughter off of this medication, and slowly her behaviors changed. She is now back to her normal self. While the Dr. hadn't warned me of any side effects when she prescribed this, when I told her I was taking her off meds, she acknowleged it could be the problem. Perhaps this medicine works for some, but parents, if you start your chid on it, please watch for changes. F 8 1 years
1X day
8/1/2010
 1  seasonal allergies Side effects started 2 1/2 years ago and were wrote off as nervous "tics". Beginning with involuntary movement of wrists. Then constant clearing of throat. Months later it was a "funny breathing" as though it was an astma attack. Now over the last week, he started this involuntary turning of the neck and head and stretching of the eyes. Said it made his eyes feel better. Took him to an eye doc for exam, everything was fine. Took him to his pediatrician who again wrote it off as a nervous tic. I stopped the meds myself and two days after stopping the head turning and stretching of the eyes stopped. His whole demeaner has changed. I have contacted the USFDA and reported the side effects that he experienced noting that I had seen this forum. They in turn said that no one else had reported any of these symptoms had been reported to them. So please if you have experienced and of these please contact them and have it recorded so that they can notify and be more Please contact the USFDA and report all these side effects. They are telling me that they have never had these repored. I gave them this link so they could read all these posts for themselves. As a mother, I am very upset and wondering what long term effects this drug may play out later in my sons life. He is only 10. M 10 3 years
5mg 1X day
7/30/2010
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 5   None My son has taken Singulair for 3 years with no side effects. He is doing well in school and has no problems with concentration or behaviour. M 7 3 years
5 mg 1X day
7/24/2010
 1  Seasonal asthma Mood swings, lower frustration tolerance, easily saddened, throat clearing, humming, eye rolling, head turning We started our 4 1/2 year old son on Singulair per pedatrician suggestion due to seasonal asthma. Previously we treated him with a nebulizer (zoponex/pulmicort) as needed. Our pediatrician suggested Singulair as a daily remedy so we started him on it once the school year ended (first week of June). During the first two weeks we noticed some behavioral changes (easily frustrated, VERY emotional, intense play) as well as sporadic humming, mostly while he would be engaged in watching TV. When we would ask him why he was doing that he would say "I don't know; it makes me feel better". This then led to a persistant throat clearing the following week and now, out of the blue, he has started repetitively turning his head as if he is looking at something next to/behind him. This is now happening in a wide range of environments (watching TV, playing, walking, during conversations). He says it "makes his eyes feel better". Once the head turning began, and we looked at how these symptoms had developed, we determined that this could have something to do with the Singulair so we immediately took him off. It has been over a week now and he continues to repetitively turn his head, sometimes as many as 15-20 times a minute. Needless to say we are a bit concerned and are hoping that this decreases over time since these behaviors seem to result from his 3 week Singulair trial. Updates to follow... M 4 3 weeks
7 mg 1X day
7/8/2010
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