Drug Ratings for SINGULAIRAverage Rating: 2.1 (1092 Ratings)
Compare SINGULAIR with similar: |
Results are sorted by Gender with females listed first (no age reported listed before females) 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 |
| RATING | REASON | SIDE EFFECTS FOR SINGULAIR | COMMENTS | SEX | AGE | DURATION/ DOSAGE | DATE ADDED |
  | F M | | | | |||
| 1 | asthma/allergies | Severe stomach aches, headaches, bloody nose, mood swings, loss of appitite | My 8 yr old son has been taking this horrible medication for approx. 4 wks and when he started complaining of the stomach ache and headaches I told him he was over reacting, I feel so guilty for not listening to him. Why don't our Dr.'s tell us about these side affects. | M | 8 | 4 weeks | 9/13/2009 | 1 | Asthma | Complete personality change in a little over two week period. | DO NOT GIVE THIS DRUG TO CHILDREN. This drug came highly recommended by our allergist. He insisted we take the drug to help with modest asthma. In the period of two weeks, our good natured well behaved child turned into a nightmare: fighting, punching, overly emotional, reclusive, mood swings, anger, etc. We took him off and the problems went away. | M | 5 | 2 weeks | 9/15/2009 | 1 | Seasonal Allergies | Severe Depression and Agression | My son was on this medication for six months before I finally made the connection between the drug and his behavior change. He became very depressed, nearly suicidal, often telling us that he wished he had never been born, wanted us to kill him, and that he didn't want to live anymore. He was also very aggressive toward his younger siblings. All of these behaviors were way out of character for him--typically a very compassionate and joyful individual. Within two weeks of being off the drug we had our normal, happy, loving boy back. NEVER EVER, EVER give this drug to a child. When I related our experience to the allergist he was not surprised, has seen it before (argh!) and said that my son can't take Singulair, Zyrtec (He had similar results with Zyrtec), or Claritin. Be very cautious of drugs, parents! | M | 7 | 6 months | 9/18/2009 | 1 | Allergy problems, sinus | I am a glass half full type of person. Within 36 hours of taking this medication I was having very depressing thoughts, by the end of the second day I felt like I was having an out of body, numbness everywhere... terrible side effects. Found this link, read other comments. Stopped about 72 hours ago and returning to normal quickly. | It did clear nasal passages but need another solution, the side effects are just too great. | M | 53 | 4 days | 11/11/2009 | 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 | allergies | anger issues, self pitty/ depression | My 5yr old son was taking this for one month. One week into taking singulair he started saying Mom you hate me dont you and also having problems in school like getting up right in the middle of the teacher teaching class and walking around. He has recently started hitting other kids in his class. This is all VERY unlike him. He has always been the sweet kid and very lovey and always everyones friend and taking up for the less fortunate. I have just taken him off the med and am anxiously waiting for him to get back to his sweet self. DONT GIVE THIS TO YOUR CHILDREN!! | M | 5 | 1 months | 11/17/2009 | 1 | asthma allerigies | depression,anxiety,sleep disorder,school phobia,ocd | while my son was on this drug,my family and my child went through hell,this drug is poison for some.It is so important that anyone who has experianced the rath of this drug make a report to the fda,this is the only way someone may listen.The doctors sure do not seem to recognise the havoc this drug causes,if they did they would not brush off us parents,send our children to therapy and give more drugs to combat the side effects of this benign pretty pink pill that is killing children | M | 11 | 3.5 days | 1/17/2010 | 1 | asthma | aggression, extreme agitation, irritable, tantrums and depression | This med was prescribed to my son when he was 3 years old however it wasn't until he was 4 that he took 4mg daily then 3 months prior to his 6th birthday is when the dose was increased to 5mg...which is when all hell broke loose. Last week when I found this sight I cried. All this time it was the singulair and not one doctor attributed my sons change in behavior to this horrible drug. Now that we have stopped it some of the aggression, depression, agitation, and tantrums are improving...I hope with time we get our son back completely and that the terrible side effects we have experienced go away. My poor son is only 6 years old and has been thru hell because of this med. I am sure many patients do fine on this medication but it isn't for everyone. I just wish I realized the link sooner. | M | 6 | 2.5 years | 1/16/2010 | 1 | Asthma | My son has been taking Singulair for a year and a half. Initially, I didn't notice any changes, but over the past several months, he had developed a habit cough and has gradually taken on strange eye tics. Kids have started noticing at school. He also seems to be a little on edge and not the happy go lucky kid I know. I took him for his annual pediatrician appointment to discuss the tics and he suggested I look at the Singular that the allergist had prescribed. I am taking him off it immediately and I feel that this drug is a horrible poison. I feel terrible for not making the connection | sooner, but better late than never, I suppose. | M | 10 | 1.5 years | 1/20/2010 | 1 | Severe Asthma | Bed Wetting Night Sweats Bad Dreams Depression Anger Wants to be alone Not Social Cries that I will leave him for good Lashes out for no reason Somedays no emotion Spacey Lost *** this all started in the last 7 months Bad Moody swings my son is not himself I don't know if its this med or Zyrtec but I'm removing him from this med. I've questioned it 3 yrs ago when a friend told me her daughter was being suicidal | M | 5 | 3 years 4mg | 5/14/2013 | 1 | Allergy Induced Asthma | Night terrors, hallucinations, anger, depression, violence, suicidal thoughts/comments, extreme mood swings, crying, moodiness. | I had no idea these were side effects. I don't remember reading any of these when we started the Rx. My friend told me about her son and his experiences, which were exactly like my son's. We are done with Singulair. | M | 11 | 2 years | 1/24/2010 | 1 | COPD and Asthma | Extreme Anger all the time. Was never able to stop feeling mad., became abusive towards my wife, which is totally opposite for me. felt like I had hate in my heart and also became very selfish. Blood pressure ALWAYS higher than before. Insomnia that even sleeping pills couldn't cure. | M | 52 | 9 months | 5/15/2013 | 1 | Asthma & Allergy | Mood swings, tantrums, break downs, crying, out of ordinary behavior | My 2 year old son has been on these meds for 1 week! At first we thought terrible 2's but as the behavior got worse I started looking online and found this site. My son now has a new doctors appointment and will NOT be taking this drug again! I have never seen him react to any medication like this. | M | 2 | 7 days | 12/30/2009 | 1 | Allergies | Anger, yelling, frusration, disrespectful communication with family, exhaustion, lack of patience, trantrums, problems listening | I originally asked my 7 year old's primary care physician for recommendations for sleep issues with my son. My son has always been a perfectionist and easy to anger, but he has a sensitive heart and always wants to please. I thought his initial problems were due to sleep problems we had seen with his inability to sleep through the night. He had chronic nasal conjestion. He was put on Singular. I was so happy with the results. He no longer had the 24/7 goopy nose. BUT 1 year later, I have an 8 year old that can not control his temper, we feel like we can no longer talk to him withour him going into a trantrum. We have gotten to the point that we feel like we are yelling at him all the time and he responds unreasonably to us or anyone. It was not until my neighbor took her son off singulair and said she notice he calmed done, that I began to tie the Singular to my somes worsening problem. I had just scheduled a meeting with his physician to talk about possible behavioral problems when I googled 'Singulair" side effects and found this page. I am so releived. I hope this will give us back our son and help him to gain control of his emotions. I know he is a smart, caring son in side this poor child. I am taking him off this drug immediately! | M | 8 | 1 years | 1/2/2010 | 1 | asthma | aggressiveness,tantrums,nightmares,hearing voices,ADHD behavior | My six year old son has been on Singulair for almost one year. It has worked for his asthma but we have seen a sweet happy little boy turn into a monster! The changes did not happen right away but slowly. After his dosage was increased when he turned six things have escalated. He has been a crazy child since starting kindergarten. He is now in the care of a child psychologist, child psychiatrist and a team at his school. He has been suspended for his behavior and kicked out of his after school program. He started meds for ADHD 3 weeks ago with little improvement in his behavior. Like many other parents I have asked the doctors can it be the Singulair and they all say oh no way! After talking with a pharmacist who told me of the horrible side effects - which by the way are not listed on the drug companies web site - I have chosen to stop the Singulair. I pray that it is the cause and that I will get by sweet loving little boy back. Something should be done about this and everyone should complain LOUDLY to the drug company! If it turns out that our world has been turned upside down by this and hundreds of dollars spent on our son's mental health issues someone sure will hear from me!!!!!!!!! | M | 6 | 11 months | 12/17/2009 | 1 | allergies | teeth grinding, aggression, not listening, mood swings, tantrums, complete melt downs and unable to calm down for up to 20 mins. hitting, biting | My 2 year old son has been on this medication for 90 days and experienced all of the side effects listed. At 1st we thought maybe its just the terrible 2's everyone keeps talking about, so we did more research on behavior/discipline, but quickly realized this was way beyond a phase and was only getting worse. We finally made the connection to the medication and took him off it. Too little too late though, he was ultimately kicked out of daycare because of his aggression. He has been off of the meds for 3 weeks now and we are going through the "detox" phase. Things are better, but I am wondering how long this will be in his system and how long these horrible side effects will last. I just want my sweet little boy back!! | M | 2 | 90 days | 12/29/2009 | 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 | frustrated, unable to concentrate, teacher and family noticed a definite change in personality and performance, frustration lead to verbally expressing wanting to "kill myself" | This is about my very intelligent, sensitive 8 yr old nephew. This scared our whole family. THE BEST WAY TO BRING ATTENTION TO THESE ADVERSE EVENTS IS TO REPORT THEM TO THE DRUG MAKER MERCK AT 800-444-2080 AND THE FDA AT http://www.fda.gov/medwatch. THIS WILL HELP BRING ABOUT AWARENESS AND CHANGE. | M | 8 | 3 weeks | 12/7/2009 | 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 | exercise-induced asthma | 14 yr. old boy - nightmares (never had before), major problems concentrating in school, esp. math (an honor student), said he felt "wierd" and "different". | My 14 yr. old son was put on Singulair for exercise-induced Asthma. He has no other asthma problems. Within a week, he was waking up at night with nightmares and had trouble sleeping. He has never had dreams at night. He said he felt "weird" - kind of in a fog. Another problems he had was concentrating and focusing on his school work. He is an "A" honor student and had trouble focusing and rememebering things. We really noticed it with his math. We took him off Singulair and have already seen a major improvement. Just be careful and be sure you monitor your child. It did not work for us. He said that it did improve his breathing during basketball but we are looking for other options - not worth it for the side effects. | M | 14 | 14 days | 3/11/2009 | 1 | my son was taking it for asthma | very very aggressive,said he hated himself and all of us,went from a very happy child to throwing tantrums that i could not stop,has bad nightmares,sees things that are not there,getting into fights at school,said his brain felt like it was about to bust out of his head,biting his nails,constantly crying over small things,says his feeling are hurt all the time and that noone likes him,i can go on and on | this is a very very very bad and horrible drug that shouldl be taken off the market! it changed my 6 year old completely! i do not recommend anyone giving this medicine to their child! Im glad that i finally put things together and realized it was this poison that was making my precious 6 year old lose himself! PURE POISON! | M | 6 | 4 months | 3/12/2009 | 1 | 11 yr old for dust mite allergies | Poor performance at school, tearful episodes, nightmares about himself and family dying. Wanting to quit school. Poor self esteem | Ethan 11 yr. old had been taking Singulair for dust mite allergies since he was 6. Has always done poor to fair at school. Very emotional. Did not associate this with Singulair, until he began talking about death. Researched on the computer about childhood depression, found link to singulair. Described him perfectly. Although I feel like a terrible mother, I realize better late than never. I read the package insert when he was 6, but these side effects were not listed then. Since he has been off the Singulair 2 1/2 weeks now, he has been less tearful and when he does cry, it is not an outburst, hysterical cry. He has a better attitude about school; although, because of the damage already done, he will probably never like school. He is just a more rational kid. So far his allergies are not bad. He is on a nasal spray and goes for a check up in a week. I'm not mad at his doctor, I guess. She probably didn't know about the new side effects, either. I'm more mad at myself and my | M | 11 | 5 years | 3/15/2009 | 1 | allergies | depression insomnia anxiety panic | this drug is pure poison,passed out to small children who suffer from its effects,but the medical community turns a blind eye | M | 15 | 3 years | 2/25/2009 | 1 | Allergy | Severe depression, severe insomnia after only one pill. | I'm afraid to take it again. | M | 56 | 1 days | 2/26/2009 | 1 | Allergies | mood changes, bad nightmares & vivid dreams, thoughts of hurting others to the point of wishing they were dead, anxieties & panic attacks, stomach ulcers, developed hyietal hernia, loss of concentration, lost 30 lbs within less than 6 weeks, choking sensation when swallowing, loss of appetite, depression, he felt like a balloon bursting in his head with 3 weeks of taking singulair. | Started taking med Nov 13, 2008. Three weeks later teachers at school recognized a change in behavior that was not typical or noticed prior to the med. The end of Dec. 2008 loss of appetite and increased mood changes and noticeable aggression toward others and unable to change feeling even knowing his thoughts & feelings were not typical or right. Jan 13, 2009 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 homebound education program. Would not recommend this drug to anyone. Was taken to the emergency room 3 times within the last month and a half. Was admitted to the hospital twice and a phsyciatric treatment facility once and currently going to a phsycologist weekly all within the last month and a half. | M | 13 | 1.5 months | 2/26/2009 | 1 | asthma | muscle aches, stomach aches, restless sleep and inability to sleep at night | M | 12 | 10 days | 4/1/2009 | 1 | Asthma / Allergic Bronchitis | Moodiness; aggressive behaviour; occasional bad dreams (h/n remembered dreams for years. Shame because it prevented attacks. | Do not give to children. Gave to my daughter and she had the same symptoms... especially the aggressive behaviour. | M | 43 | 6 months | 4/2/2009 | 1 | asthma | my 6 year old daughter just started this medicine 3 weeks ago and at first told me she felt leg pains..i thought nothing of it,maybe it was growing pains. She was acting a little weird and fighting with her 2 year old brother and us. Then just yesterday she looked very down and when i asked her what was wrong she said that "she was born". This totally shocked me and my heart broke. Why would she say that? Was she having trouble in school? Feeling neglected at home? We always have fun with the kids. Then she said she has been feeling really sad lately and she didn't know why. When I went to give her the dose last night, I realize it was the medicine!!The label with small writing on the side said to call doctor if you experience mood changes, sadness, depression.. She had been acting out of her normal because of it! Of course I didn't give it to her and will never give it to her again!!!! | M | 27 | 21 days | 3/19/2009 | 1 | Asthma | Aggressive behaviour, uncontrollable crying, extreme temper tantrums, lack of concentration/interest, hyperactivity. . .. | My 2 1/2 year old son was prescribed singulair only 1 week ago for his asthma. After just a few days I noticed a drastic change in his behaviour. He has acted completely out of character and has been angry and aggressive with other children. I know that 2 year olds are reknown for their lack of self control when it comes to behaviour and on a regular day he is no angel, but his behaviour has been extreme. After only 2 days he was complaining of back ache. He has been nervous to even go upstairs on his own and has been vary anxious in situations where he is normally very comfortable and confident. He has experienced nose bleeds from the slightest bump. He has had exteme temper tantrums and has looked at me with such hate in his eyes. I have read other comments on this site and share the feelings of a lot of parents who feel angry with the doctors for prescribing this medication without fully discussing the possible side effects. I was made to feel like an over protective mother | M | 2.5 | 7 days | 6/25/2008 | 1 | asthma | My son has been on the medication for 3 years and in the last few days we have had a major change in his behavior. He goes to a day care for kids with special needs because he has comorbid issues, but the other day he had 5 referals for hitting, kicking, biting, and potty mouth. Today, i had to pick him up because he became violent and was uncontrollable. Does anyone know how long until these side effects will last. I have stopped his singulair and just was wondering if anyone knows how long we will need to be afraid of these side effects..... | M | 4 | 3 years | 6/26/2008 | 1 | asthma | stomach aches, hitting, uncontrollable screaming, tantrums, loss of appetite | I am so hurt. As a mother I trust what the doctors prescribe for my child. I am so grateful I found this website soon. My two year old son has been prescribed this medication for a month now. After about two weeks on Singulair, he started screaming uncontrollably. His cousins were suddenly afraid of him hitting them with something. He experienced more tantrums and a loss of appetite. As I recall now, there have been several times where he came to me and complained of a stomach ache. I am completely horrified but again thankful I found this website very early on. I am taking him off this stupid medication today! | M | 2 | | 6/14/2008 | 1 | Sinus infections and asthma | aggression, depression, loss of concentration, edginess, stomach-ache. | My 6 year old son had been on it since he was 18 months old. He has always been on the verge of either being angry or crying. I always thought it was just him. Until he got so mad he said he was going to kill himself. It caused me to google childhood depression and I found out about this problem with Singulair. I immediately stopped the drug. His pediatician said that there could be no link between the two. Within 2 weeks, his teacher sent home a note saying she didn't know what had changed but that he was a different boy in school. Happy, well-adjusted and making friends. He skips everywhere he goes and is happy, loving and obedient. It makes me so sad that I gave him this drug for 4 1/2 years and didn't even know what I was doing to him. | M | 6 | 4 years | 7/18/2008 | 1 | ALLERGIES | My son is two and was taking singulair for about 1 year. He has not slept a full night not even once. About 3 months ago I decided to take him off of it and about a week later he had a "febrile seizure" so the docs called it. I put him back on it because I thought his allergies caused his fever and got sicker from being off of it...Well 2 weeks ago I wanted to try him off it agian because I hate him being on all kinds of medicine. Within a week of being off it, he has had 7 atonic seizures (where he just falls down for a second). I truely believe his body is withdrawing from this awful drug..It is odd that it has happened each time just within a week of being off this "miracle drug". My son has no other problems. We had to see a neurologist and he just wants to put him on more medicine and says it is no way realted to sinuses or singulair. I beg to differ. I think the doctors and drug company's are just interested in helping each other and not our children... | I am going to trust God and listen to my intuition as a mother and a christian. | M | 2 | 1 years | 6/5/2008 | 1 | allergies/asthma | behavior change, swollen lips, terrible nightmares, fever, cough | My son was on this medication for 2 weeks. He had TERRIBLE side effects. It began with his temper. He became a different child. Then he started to complain that his bottom lip hurt and he would often scream and cry that it hurt so much. The next few nights were terrible. He cried and screamed in his sleep all night. On his last night he woke up with a high fever, chills, and was crying because of the ongoing nightmares. I called his doctor and took him off of it immediately. Do not give your children this medicine! It is so dangerous. I wish I would have known this before giving it to him. | M | 4 | 2 weeks | 7/27/2008 | 1 | allergies | my son which is almost 5 has been on Singulair and Zyrtec since he was 18 months, He has always had tantrums from time to time but in the last few months his attitude, behavior and mouth is awful. My family and I kept thinking he is almost 5 he shouldn't be acting this way anymore. He acts like the devil is in him at times, I never thought it could be the medicine, but after reading this today will be the last day I ever give it to him. He has severe allergies so I was trying to see what other parents were giving their children....anybody have any suggestions? | M | 4 | 2.5 years | 8/5/2008 | 1 | severe allergies outdoor/indoor | anxiety, behavioral changes, withdrawn, night terrors, hallucinations,fear of bugs/spiders,afraid to be alone, ocd-like issues,& on and on | My 5 year old daughter has been on Singulair for 3 years. Over the last several months,at a rapid pace, we've watched our carefree, loving, independent child turn into an anxiety ridden & worried little girl. Her nights have been full of terrors & hallucinations and her days have been spent glued to her father and myself. I sat at the computer & cried after reading most of these responses. I am so grateful to all of you who have posted your dealings with this medication.I am not alone. Our daughter has been off this medicine for 1 1/2 weeks & we are slowly seeing things improve. I hope it will continue & my thoughts are with the rest of your families who are going through this! | M | 5 | 3 days | 7/22/2008 | 1 | asthma | My 4 1/2 year old son started taking this terrible drug 1 year ago. My sweet little boy began to display explosive outbursts far worse than any typical tantrum. He became hyperactive, unable to focus, and impossible to redirect.When I tried to talk to him he would say "mommy sometimes i just can't tell my brain to stop". He started to become afraid to be alone, and had nightmares weekly. My little boy was aggressing on his baby sister on a daily basis and in one weekend was in time out 35 times for random acts of violence. We got him a puppy for his birthday and most days he is not permitted to play with him because he has been trying to hurt him. This week was the last straw- we were having a random conversation and he said that he wanted to kill a stranger. My heart sank. I monitor what cartoons he watches, we don't speak like that in my household. So I started to do my own research online and found that other parents experienced this very same thing. I gave him his last do | M | 4 | 1 years | 9/29/2008 | 1 | allergies | My then four year old son took Singular three years ago after other allergy medications would not work. My husband and I quickly noticed a difference in out normally calm son. Pre-school teachers were concerned, as were we, considering he was normally a child who payed attention, obeyed rules, and stayed focus. Suddenly he could not sit still and was mean to his brother and friends. The doctors swore there was no way these were side effects from the drup, and that he must just be going through a stage. After reading more info online from sites like this we immediately took him off the medication. He returned to his normal selse within a few days! | Watch out parents!!! | M | 4 | 1 months | 9/14/2008 | 1 | asthma | my son took singulair for two weeks after not taking it most of the summer in the past few days he has become worried easily,clingy,easily upset. he has irregular heartbeat on/off and since thursday may be having vision hallucinations which is very scary to him. he is seeing black images now some white,his eye ball has alot of red lines and i'm not sure but it might have been yellow. i have been giving him eye drops for the past day cause we thought he might have gotten something in his eye. it is sometimes itchy and hurts alittle after the drops.he was feeling weak/funny, headache and stomach aches. | as i reread the side affects i see over the years it could have been singulair all a long. fevers only that last over night, nightmares, stomach aches, headaches. since age 4 he has had Pneumonia 5 times. until this past february he has been seeing the same doctor since birth. we will talk to the new doctor in two weeks. he has been taking singular since age 3 and is now 11 1/2 years old. the past doctor would not let us stop it but i have stopped in on/off until he gets the signs of getting a cold. his asthma seens to be weather related/ high temperature/mold. today i talked to the pharmacy and they said the image could be hallucinations but he has not had any one have any problems with singulair. that we could try stopping it let it get out of his system and just start back with half a pill. we decided to stop and seek info from the new doctor. | M | 11 | 8 years | 8/23/2008 | 1 | chronic rhinitis | paranoias, hallucinations, suicidal thoughts and phonism. very terrible side effects. i could not control myself. | singulair was very effective for alleviating the rhinitis symtoms, but i was also hospitalized 7 days for 'initiative psychosis symtoms'. luckily, i remember singulair is somewhat related to mood and behavior change. i stopped taking singulair for 5 days and all horrible side effects were gone. i am a sane myself. | M | 47 | 3 years | 8/27/2008 | 1 | Asthma, allergies | Out-of-control behavior, hyperactivity, tantrums | We are stopping Singulair TODAY! My son's behavior has been completely out of control since starting this medicine, I'm so tired of disciplining him, because he was very well behaved before. He has no control of his actions, he talks for hours non-stop and is extremely hyper. He also just got over being sick with the same asthma/allergy problems and an ear infection, which can be a side effect...so not worth it!! | M | 4 | 1 months | 6/4/2009 | 1 | Asthma/Allergies/ Eczema | Anxiety, mood changes, whining, change of personality, aggression | My now 5 yr old son has has asthma since the age of 13 months, and was put into Singulair. It was like a wonder drug it seemed to help in every aspect of that drug. I was quite happy with the drug. He lives with me (biological father) and has little to do with bio mum for her own personal reasons and hasn't since he was 3 and I had not noticed any major affects of this. Yes environmental factors do tend to do this to kids however since he started taking Singulair he changed completely and he was not the child I knew. I took him off it after reading this site and he has gone back to his "normal" self. He no longer suffers from anxiety. He is your average 5 yr old child going on 25. I wouldn't recommend this drug to anyone to use, esp kids. I haven't a clue how it affects the adult brain, but for a child it's a no no. | M | 4 | 3 months | 5/1/2009 | 1 | Asthma | My son became argumentative and more agressive. We thought it was just a phase that he was going through but when we stopped the medication it seemed that our loving son returned within a couple of days. We found this is a common side effect with children. | See side effects. | M | 5 | 2 months | 4/4/2009 | 1 | Allergies | My 10-year-old son suddenly became very clingy always touching and smelling me--as if he was trying to make sure I was really there. Normally a pretty lazy kid he could not sit down and was very anxious. Then the hallucinations started--he was seeing dark figures and words like "death" floating in the air. He also was convinced everything was poisoned. It took us 2 weeks to consider that it was the medicine. He is returning to normal after 3 days of no Singulair. Thank goodness for this website. | Very scary medicine. | M | 10 | 2 weeks | 4/12/2009 | 1 | seasonal allergy | Anxiety | I tried it a few times and each time I experienced uncomfortable levels of anxiety. It did work to solve the allergy symptoms but I couldn't live with this side effect. | M | 45 | 5 times | 4/17/2009 | 1 | Asthma | excessive crying,mood swings,depression,highly emotional,trouble focusing/listening | Finally answers to all of my questions!!!!!! It's been about 5 years that my 6 yr old son has been on singulair. Ever since he's been on it I've had problems with his behavior. Sure the doctor was right about the attacks being controlled but not his behavior. It's a blessing to have found this site. My son will no longer be taking this medication! Singulair should be recalled due to all of these side effects it has caused in children and adults. | M | 6 | 5 years | 9/2/2009 | 1 | seasonal allergies | My son was on and off Singular for several years for his seasonal allergies. We finally realized that he has always been a very strong willed child, but whenever he was taking Sin gular he became very aggressive. We refused to put him on this medication again. It did help his allergies, but was not worth the side effects! When I told our pediatrician he was not aware of this side effect. He went and checked his medicine book and found that increased aggressiveness WAS a side effect. | Would not give to children | M | 7 | 2 years | 9/5/2009 | 1 | allergies/asthma | Headaches, severe stomach ache, bloody nose, agressive, emotional, mood swings | My 8 year old son has been on this for aprox. 5 weeks, and I now feel so guilty for accusing him of over acting and just wanting attention! This is horrible medication and I can't believe our Dr.'s don't give us these warnings. | M | 8 | 5 weeks | 9/13/2009 | 1 | allergies | My 7 year old was prescribed this for severe allergies. He complained of headaches constantly. He was very emotional. He was always an excellent student and his teacher said he was having trouble focusing. | I would not recommend this medication for children! | M | 7 | 5 days | 6/17/2009 | 1 | Allergies | Abdominal pain, bloating, dizziness, leg cramps, restlessness. | Side effects began to subside immediately after I stopped taking the medication. However, it has been nine days and there are still some transient side effects although they are much better. It will probably take some time, I would not encourage anyone to take this medication. | M | 49 | 30 days | 6/22/2009 | 1 | Allergies | I took singulair for 3 weeks. After 1 week I became very depressed and had nightmares. I also became very anxious and had mood swings. I stopped taking singulair 2 days ago but am still experiencing some of these side effects. | How much longer will I experience these side effects? | M | 18 | 3 weeks | 7/1/2009 | 1 | mild asthma, allergy symptoms | ok where do I start, My son started taking Singular 4 mg after second birthday. I never really thought that his behavior could be caused by singular(the wonder drug). I think back now and I have chills on my arms after reading the stories. They sound so much like my son. It has always been hard for him to make friends and he was hyper and distracted, ADD symptoms, was amazed over death and grave yards, would cry at the drop of a hat and would never followed directions. I just thought it was part of him and we all accepted it. At 6 the Dr. put him on 6 mg singular chewables. I would have never known about this if it hadn't been for me taking him to the dr for his constant itching and rashes and the Dr. suggested we see an allergist. We went to the allergist and they did all the stick tests and found his allergies and then told me to keep him on the singular 6 mg. and he prescribed zyrtec and flonase. After taking 2 days along with the singular 6 mg he was already taking he begain to ta | Please don't give your child this medication, the side effects are really scary and children are suppose to be children not little zombies. I have since gotten and really nice humidifier and I will use that instead of drugs. | M | 6 | 4 years | 7/15/2009 | 1 | seasonal allergies/ asthma | My 5 1/2 yr. old (for slight asthma/allergy) and my 3 1/2 yr. old (allergy/sinus problems) have been on this medication for only 4 days and they have both had severe personality changes: hyper, moody, don't listen, aggressive. NOT THEMSELVES! My 5 yr. old is being more strongly effected even though they're both on the same dosage. He's sad/happy/angry has started saying he hates himself, is hitting himself in the head...all out of nowhere! I SPECIFICALLY asked the MD if there were side effects to be concerned with..."oh no" he said,..."very safe". BULL! I figured I'd run a search on singulair side effects for my own peace of mind because I just couldn't believe their personalities could become so altered in just a few days for no reason at all! I found this web site...THANK YOU! My sons will no longer be taking this junk! God help all the families out there who are possibly having their children misdiagnosed with things like ADD/ADHD because of this terrible m | I don't know if this stuff works or not...my 5 1/2 yr. old was put on it for preventative measures...he only uses an albuteral inhaler occasionally (seasonal allergy induced) and the dr. wanted to put him on singulair now to keep him inhaler free in the next few weeks as new allergens surface. My 3 1/2 yr. old was put on it for nasal congestion...he's still stuffy! | M | 5 | 4 days | 8/11/2007 | 1 | 1 | itchy legs ,sore legs mood swings, anxiety,agitation,hopelessness, oveheating | our son took it for 17 days and took his life after 2to 3 days of incredible anxiety he was a happy healthy boy had a physical for football and the doctor suggested he try it for seasonal allergies.We have reported it to FDA He was 15 years old and this drug took his mind | M | 44 | 17 days | 9/12/2007 | 1 | yes | my 19 month old son was on it for 4 weeks, we started to notice a very big change on him, for the worst, he would not play, constantly crying, just laiding down on the floor, it wasn't him, he is a active little boy, but became inactive, doctor's kept telling me its his teeth, as I read about the side effect, I was so shock to see that my little boy was going through that, I took him off, and have seen a great improvement in him, he's playing, sleeping well, the way he used to be before taking singulair, his doctor refuses to believe it had anything to do with the mediction, me as his mother has seen a great improvement in my son, since I took him off the singulair, I feel it should not be given to children | M | 2 | 4 days | 5/2/2007 | 1 | asthma/allergies? | My 3 1/2 year old son was givn the medicine because he had severe coughing spells, that couldnt be explained. The doctor gave us samples while we waited to see a specailist. 4 out 7 nights on the drug he wet the bed, he became very inpatient, sensitive, thought people were laughing at him, more agrressive,biting his brother, difficulty sleeping, crying in his sleep, nightmares, antisocial etc etc. | My son experienced these symptoms after one week, BEWARE!!! of this medication the risks just dont out way the benefits. My once outgoing child became afraid to go to school and depressed after one week, said he didnt want to be happy and was telling me he did things that he hadnt, bad things! I can only imagine what may have happened if he had stayed on the meds. Do not give your children this medication!How dare drug companies give out this medication when there are so many horror stories out there. Shame on them!!!!!!Ps Two days after stopping my son is getting back to his old self and hopefuly in a couple days I will have my happy fun loving child back. | M | 4 | 7 days | 6/30/2007 | 1 | Allergies and asthma | Difficulty sleeping, bad muscle cramps, mood swings, very irritable, depressed. | Though it helped with allergies and improved my breathing a little it was not much better than a generic allergy pill and definitely not worth taking in light of the side effects. | M | 66 | 5 months | 8/1/2007 | 1 | allergies | My 22 mo. old son started taking Singulair last week and has irritable and has been having trouble sleeping. He has always been the best sleeper out of my 3 sons. I remembered reading on the patient leaflet that this could be one of the possible side effects. | After reading the comments on this site, I am planning to take my 3 year old, who has been on Singulair for a year and a half, off it too. I think this is what is causing his repeated waking at night with nightmares and hallucinations. | M | 1.5 | 7 days | 5/21/2007 | 1 | allergy/asthma | night waking/crying 2 to 6 times a night, huge thirst, diarrhea, rash on neck and chest, scratching neck and ear, twitching legs--like cramps | Our son was prescribed this at 19 months (granules in juice at night) and cleared up congestion and constant runny nose. Over past three months he wakes almost every hour crying and drinks about a gallon of water. He thrashes around in his bed and acts tired all day. He used to be an excellent sleeper and a really mellow little guy. Now, he fusses a lot, clings, and is way more aggressive toward older sister. At first we thought many of the symptoms were because he was almost two, cutting teeth, and having occassional night terrors. Not having more than a two to three hour stretch of sleep for months on end is not normal for any age! After reading this site, he is OFF of the medication (and Flonase as well) as of tonight. A naturopath wants him on a dairy-free and glutein-free diet and he is now taking natural supplements and vitamins to boost his immune system. Please consider a diet change as an alternative to this medicine. After reading this site, I feel horrible that we l | M | 2 | 3 months | 9/16/2007 |