SINGULAIR Reviews (MONTELUKAST SODIUM)Average Rating: 2.1 (1370 Ratings)Filter ResultsCompare SINGULAIR with similar:
Type: Rx Drug
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Results are sorted by Age from youngest to oldest (reviews with no age reported listed first). Key to Ratings: 1=LOW (I would not recommend taking this medicine.) Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 |
More on SINGULAIR: Reviews Summary | Drug Safety Information
| RATING | REASON | SIDE EFFECTS FOR SINGULAIR | COMMENTS | SEX | AGE | DURATION/ DOSAGE | DATE ADDED |
| 1 | asthma and allergies | aggressive behavior, nightmares, loss of appetite | My 3 year old son was on Singulair for one month before I noticed a drastic change in his personality. His behavior became very aggressive and he was unresponsive to punishment. He was not himself at all. He also complained of nightmares and experienced a loss of appetite. After finding this site, I took him off the drug immediately. He has been off of it for two weeks now and is completely back to normal - his attitude and appetite changed immediately. | M | 3 | 30 days | 12/13/2008 | 1 | exercise induced asthma | My 3 year old daughter is normally a very laid back and pretty quiet child. SHe's been on it for 8 days, and the past few days she has been out of control and completely out of character. Bouncing off walls, throwing tantrums, and not listening at all. | I will be taking her off this now. Especially after hearing there is aspartame in it. | F | 3 | 8 days | 12/11/2006 | 1 | Asthma, Allergies, Sinus Infections | My three year old son's behavior changed completely. He turned violent and had really bad nightmares. | He was taking 4 mlg pills. It was so bad that I discontinued it. | M | 3 | 15 days | 5/10/2005 | 1 | Asthma | 3 1/2 year old - Moody, irrational,anxious, tantrums | My 3 1/2 year old has been on this for a little over a week and suddenly stomping her foot in frustration and will not look me in the eye when I try to address anything with her. Her pre-school teacher called me today at her wits end because she could not understand what was going on with her. She would not nap, but she usually is the first asleep. She kept getting up and bothering other children. When I spoke to her she was freaking out that I was in the phone. She knows how phones work and is very intellegent, so I was very concerned. I did not give her any Singulair tonight and will never again because of the research I had done. I wish I had done it before giving it to her. | F | 3 | 7 days | 10/29/2008 | 1 | Asthma | I definitely urge parents not to take this medicine. My daughter is 3 years old and was given this occasionally when she had asthma. Maybe like 3 times year, for a short duration of 4 days. Recently, the doctor gave her this again for 4 days. Today is the 5th day that she has withdrawn from the medicine yet it has changed her personality completely. She has become aggressive and screams that she wants to throw out her favourite teddy bear in the garbage. It's scary. As you can see no kid in the right state of mind would ever suggest this. She was not joking, she was serious about it. My worst experience are the night terrors. At first she will kick and scream about opening the door for 10 minutes, now her episodes last for 30 minutes. It is very frightening to watch. I don't know when the side effects will wear off. I miss having a sweet and happy kid. | F | 3 | 4 days 4mg | 4/10/2014 | 1 | Allergies | My daughter is 3, after 1 week of taking this, she began bed wetting which she had never done, was seeing people who were not there, woke up screaming from nightmares that she said a man was trying to take her away, and worst of all last night she woke up screaming hysterically and was like this 4 hours, saying get them off spiders and other things were crawling on her and were getting her, she is. Ow scared of the dark, won't sleep. Even all day has said things were crawling on her. Scary to think our next 2 weeks may be like this paranoia schizophrenia episodes. And wonder the lasting mental scars it will leave for such a young child. | My daughter has taken Singulair for the last 2 weeks and it has helped her symptoms of allergies greatly, it does not offset the extreme side effects it caused. | F | 3 | 2 weeks 4mg 1X day | 9/25/2013 | 1 | Allerty, Asthma, Congestion | Extremely emotional, uncontrollable crying, kicking, screaming, unable to calm down, back aches. | My 3yr old son was on singulair for 2 days. It cleared up his symptoms immedietley, but that is when eveything else started happening. He went to preschool and had a melt down over nothing, kicking & screaming, rolling on the floor. He could not calm down and everything seemed to agitate him more. The tantrum lasted for 90 min. and I had to come get him & bring him home. The next morning he started complaining that his back hurt, the crying started again and his teacher said he has been in a bad mood all day. This was not my son. I was so worried. The Dr. said to discontinue taking it. Now I'm wondering how long it stays in his system. | M | 3 | 2 days | 12/3/2009 | 1 | Presumed allergies, cough, wheezing | Mood swings, odd behavior, nightmares. | I only gave my son 3 doses of this medication. Two of those 3 days, he had nightmares. He was also a little more moody than usual and had behavior that was totally out of character for him. | M | 3 | 3 days | 12/2/2009 | 1 | seasonal asthmatic symptoms | nightmares, anxiety attacks, anger, change in behavior | My 3yo son started taking this 4 days ago. The first night, he had a nightmare. Starting soon after, he started hearing "sounds". We never figured out what he heard, but he'd climb the walls screaming even when he would hear you scratch. This evening he had a 2 hour anxiety attack. His personality has changed even in this short time: he's moody and angry. I wondered if it was the medication, and Google brought me here. There is now no doubt in my mind, and my child will no longer take this. | M | 3 | 4 days | 12/6/2009 | 1 | Asthma | Gave one dose to my 3 year boy. He could not sleep the whole night and complained about flu like symptoms. Ear pain, slight fever and tummy ache were most notable and also is listed as common side effects. Heart was accelerated and he complained of strange dreams. All from one dose!!! This is a 3 year old that sleeps a solid 10 hours a night with no issues. This stuff is poison. Glad we found out after only one dose. I feel terrible for those who suffered long term issues from long term use of this drug. | We immediately discontinued the drug and learned a valuable lesson. We even asked the doctor about "notable side effects" and he said "there are none". No more trusting this pediatrician (we thought he was one of the good ones) !! | M | 3 | 1 days 5mg | 12/4/2016 | 1 | asthma | My daughter took montelukast from the age of 3yrs for poorly controlled asthma symptoms. Over a period of time, we noticed her usual cheerful personality changed and she became more subdued. She began complaining of bad headaches,to the extent she couldn't bend down. GP said they were stress related,which I questioned as I couldn't believe a 6yr old child could be suffering from stress. I read up on her medications and decided upon myself to stop montelukast, much to the anger of her asthma consultant. The headaches ceased and she became more like her old self. Shortly after this time, we noticed that she was pulling her eyelashes/eyebrows out(in secret) and couldn't explain why she was doing this. She was refered to CAAMHS and diagnosed with severe anxiety issues, but continues to pull her hair out to this day-she is now 9yrs old. I felt guilty that I stopped her asthma medication- which is still poorly controlled-assuming that the GP's initial diagnosis of stress headaches was probably correct. Last week, her consultant re-prescribed montelukast & the headaches have started again. This has now lead me to think that I was right after all about the headaches and after reading comments on this website that possibly my 9 year old daughter's 'mental health' issues stem from the prolonged use of montelukast during her early years. | See above | F | 3 | 3 years 5mg | 2/26/2015 | 1 | Seasonal allergies | My then 2 year old was on this drug for mild allergies for 18 months she suffered extreme fear, anxiety, depression, memory loss, confusion, agression, self harm, tummy aches and pains in all parts of her body, always sad and scared, loss of communication and emotion, agression towards others and herself, bed wetting, Hallucinations, hearing voices, could not sleep or sleep alone. We were not informed of these neurospsychiatric side effects or any of these others we assumed it was a toddler and the terrible 2 and 3s but we now know it wasnt. We took her off and her recovery began with withdrawals and intensified side effects slowly she become the little girl I knew she always was. 6 months on and she has recovered but we dont know what damage that drug did to my little girl. | This should not be given to children who cannot explain themselves or their emotions | F | 3 | 18 months 4mg | 10/15/2019 | 1 | Asthma | My daughter was on this medication for 20 days, her behavior changed almost immediately, throwing fits that were not normal 3 year old fits, I had to pick her up from daycare 3 different times for being mean to other kids and just being completely out of control, the last episode was completely horrible. The daycare recorded her and I could not even believe that it was my child she was so angry and aggressive throwing chairs across the room. After it was over with she was crying and apologizing saying she did not know why she did it, and it is not fair. We stopped the medication last night so hopefully she will get back to normal. | F | 3 | 20 days 1X day | 12/15/2021 | 4 | Allergies Asthma | Wow. This has been an eye opener. I came to this site for another medication, but I think I've finally put this together. My 3 1/2 year old has been very aggressive. In fact, got in trouble today at sunday school for starting a fight with a child. He has also been hyper, unusually loud, and has screaming fits. However, a few weeks ago we traveled home to Chicago. We were out of our routine, and I kept forgetting to give him his daily dose of singulair. I noticed that my child was so well mannered, calm, and tried to assist his younger cousin whenever she would have an emotional meltdown. I thought, wow, he's growing up and maturing. Not so. When I returned home, we returned to our usual one dose in the morning of singulair, and he was back to his very difficult self -- constnatly wanting my attention, getting upset at the drop of a hat, difficult sleeping. I think I may have found the culprit. I'm going to keep him off for a week and see if there's a noticeable difference. | The med works for keeping his allergies and asthma at bay, but the emotional side effects are far too demanding on a child -- if not the entire household. | M | 3.5 | 4 months | 9/20/2009 | 4 | Prevention of asthma & allergies | None | Prescribed for my 1 1/2 year old son after bout with pneumonia, as preventative for asthma (I am asthmatic and allergic). Convinced it has worked! No noticable side effects. | M | 3.5 | 2 years | 6/19/2007 | 1 | Suspected Asthma (RAD) | My son was prescribed the drug when he was 3.5. He experienced night terrors, constantly complained of stomach aches, could not focus, had extremely low self esteem, worried that people were laughing at him, irritable and moody, exhibited agressive behavior and perseverated about very minor issues. | Things got so bad for my son, we had him evaluated by a psychologist. We stopped the Singulair and most behaviors all but disappeared within a week or two. He is now a slightly quirky (but typically happy) 5 year old. I still wonder if he has any lasting effects from this med. | M | 3.5 | 1 years | 4/13/2008 | 1 | Sleep Apnea | Our son was on Singulair for 3 weeks and we noticed a drastic change in his personality during the 3rd week. He became extremely moody, crying whenever he did not get what he wanted in that particular moment, and violent. He also had nightmares at night. We stopped the medication and his behavior returned to normal. | M | 3.5 | 3 weeks | 11/16/2007 | 1 | Asthma, Allergies | Sleeplessness, insecurity, weakness, EXTREME aggression, irritability. | My son was put on Singulair as a 'preventative' measure for his asthma during the winter months. In the last 3 days, he has bitten 2 friends and broken the skin, hit 2 friends for no reason, and violently scratched another friend. This is not our son. He breaks down immediately after doing these very aggressive acts and in unconsolable and doesn't know why he did it. We have been trying to understand the massive mood swing in him and aggressive behavior. Now that I have found this site and others, I am realizing that all of this started 2 months ago when he was put on the singulair - and that when he was off it before over the summer that he had no problems and was the sweet, loving, confident child he used to be. I have had 3 refills for the time he has been on this drug and NEVER received any patient information on the drug with it. I had no idea the side effects were this bad, or even that these were side effects until I researched it myself. I am taking him off and hoping h | M | 3.5 | 2 months | 12/21/2007 | 1 | asthma/allergies | My 3 yr. old son, who is very intelligent, became defiant, hateful, biting, hitting, pinching. He was having night mares, sleepwalking, couldn't make sense of things. I was about to call a developmental pediatrician. I had questioned daycare, church, everybody thinking he may have been abused. Finally it dawned on me about the medicine. I googled it, and found this site. | I have taken him off singulair. He has been off for 2 days and it is a slow process, but I am starting to see him return to normal. This medication should not be on the market. | M | 3.5 | 3 weeks | 3/11/2009 | 1 | allergy symptoms, coughing | My 3 1/2 year old daughter has taken Singulair for 2 days. Last night she was so restless and agitated, she went to sleep at 1:00 a.m. She has also been complaining of her leg hurting, which I've seen in another comment too. In addition she is cranky but I'm not 100% sure if it's from this. But, just in case I'm going to discontinue this medication. It's Tylenol Cold & Dimetapp for us! | F | 3.5 | 2 days | 4/16/2009 |