SINGULAIR Reviews (MONTELUKAST SODIUM)

Average Rating: 2.1 (1370 Ratings)

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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)

  

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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
 
 1  Asthma due to pet allergies Hallucinations, obsessive thoughts The first night I took this, I woke up yelling at my husband that I was coughing up blood. He flicked on the light and I was fine, but I couldn't shake the feeling. The exact same thing happened once every few days. Last night, I started having OCD thoughts about how I was bleeding out of my mouth. I was pacing back and forth, running to the bathroom to check on the "blood", waking up my husband to tell him I couldn't stop bleeding.. It was like I was on LSD. I spent two hours pacing back and forth, just seeing the "blood" that I knew wasn't actually there. It was the scariest thing in my entire life. I have never been diagnosed with any mental illness and have NEVER had anything like this happen. I am getting off this drug IMMEDIATELY! F 26 2 weeks
1X day
12/25/2011
Email
 1  Sinus problems Horrible experience! Thank you to all those who posted previously. I thought I was just going into some sort of depression. I was always yelling or crying. Spent hours just laying in bed, always tired. The worst part about it, this drug did NOTHING for my Allergies!! F 23 4 days
10
12/19/2011
 1  asthma,allergies my wife started taking singulair to control her asthma and allergies. at first she told me about her vivid nightmares. and i thought that was it. then i noticed her mood changes. last night she tried to kill her self and was telling me how depress she has been and how the world would be so much better with out her. why would this drug be put on the market. i'm sure after so many complaints another alternative has got to be created. or is it prescribed by doctors because the company that produces it gives them a piece of the profits? this drug, does help control asthma and allergies, but the down side is that if patient taking it is left unattended, will probably attempt to commit suicide F 26 30 days
10 mg 1X day
12/11/2011
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 2  Severe Allergies Extreme depression, anxiety, panic attacks, heart racing, extreme fear, complete change in personality, insomnia, hopelessness, tingling in legs I started taking Singulair last year after I was treated for a horrible sinus infection that lasted about 2 months. I have had allergies all my life, but they got very severe since last year. I began to feel severely depressed and anxious all the time, as if the world was ending or something horrible would happen. I have always been a happy, extremely positive person and all of the sudden my whole personality changed. I experienced extreme fear everyday, extreme anxiety, excessive crying, and my heart was racing. I had a sinus infection a month ago that I was treated for and my allergist thought that now I was still feeling horrible from the infection, as well as my horrible seasonal allergies. My mom took me to the doctor yesterday after I got home from school because I was still experiencing horrible emotional symptoms. My allergist said to stop taking Singulair. We had no idea this could cause me to feel soo horrible!!! I stopped taking it last night and I am already starting to feel like myself again. DO NOT TAKE SINGULAIR! Epecially do not prescirbe this drug to children, I've never felt so horrible or so scared in my life. They should be sued! F 18 1 years
10 1X day
12/3/2011
 3  Asthma, Allergies Depression, anxiety, a studder, hopelessness, suicidal thoughts, fear, lonliness, mood swings, anger I have taken Singulair my entire life. I wish I could have my childhood back without fear, without anxiety, without depression, I dont exactly know how this drug has helped me with my asthma, nor do I know if me as a person will be different if I ever get taken off of it. I fear I am who I am today beacuse of Singulair.a All I do is stress and fear everything, I even fear talking to people. I fear telling my doctor, if I get taken off the drug, will my asthma be controllable? Will I be a different person. Maybe I'll never know. I wonder who I would be today if I didn't have asthma, if I didnt have to take singulair. All I ever want is to be accepted by people but I fear there is no one on this earth as unfortunate as me. Every day I contemplate suicide, I fear it so much I con't do it. M 16 16 years
10mg 1X day
12/2/2011
Email
 1  allergies insomnia, hallucinations, and dream abnormalities My daughter was prescribed Singulair at age 3. One night DH heard her talking to herself in the middle of the night for hours. When asked the next morning who she was talking to, she said, "The people in my walls." Her waking up and talking all night went on for about 6 weeks. Daughter is now 6. I mentioned giving her Tylenol for a toothache the other day, her response was, "Wait, is that the stuff that makes me see my dreams on the walls?" Connected the dots and realized that she had been hallucinating that whole time. F 3 2 months
1 tablet 1X day
12/2/2011
Email
 1  asthma Nightmares, suicide ideation, hallucinations, threat of violence to others, severe headaches, pain in joints, depression, reckless behavior, anger/hostility/aggression, fatigue. Do not take this drug! It is poison. There are other, much safer, alternatives. Contact FDA, contact Merck, contact all your health care providers, contact your school counselors, contact the press, tell everyone you know. This is Merck's biggest money maker. This drug should not be given to children! F 11 24 days
5 mg 1X day
11/27/2011
Email
 1  Asthma Aching joints and back, heart burn and very severe dizziness, throat swelling up and asthma made much worse. Horrible drug. Which I'd known about the side effects. It's been 2 weeks since I stopped taking it and still getting severe dizzy spells, so bad that it's effecting my work. Will never recommend. Made my asthma worse and the joint pain almost beyond bearing. Avoid. F 33 6 days
10 1X day
11/26/2011
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 1  Allergy I went with my 4 years old daughter to a pediatric allergist due to her pediatric found problems in a blood test. The allergist prescribed Singulair 4mg, Allegra and Nasonex spray. About 4 weeks later started an allergy in her body and their pediatric said it was an Urticaria (hives) due to the food, after several test she was hospitalized for a week a received a lot of steroids and a the diagnostic of allergy to the wheat flour, eggs and cow milk with a very restrictive diet. The recipe to our home was continuing Singulair, Allegra and Zyrtec. The urticaria come back again, her lips get very red, mild fever, sweating, heat in your body and the urticaria changed to a big problem, the leukocytes count down for about two weeks. To resume this "medical enigma", and after several weeks almost desperate thinking in everything as possible cause, my wife and i stopped the Singulair and Zyrtec (the urticaria started before of Zyrtech) and in this moment we have two weeks without urti Don't Give Singulair to Your Children! M 45 3 months
1X day
11/23/2011
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 3  Asthma and allergies Diarrhea, headaches, body aches, chest pain/tightness, and abdomen/stomach pain. I was put on this drug as a last resort, my allergies were out of control and I got winded easily. I had been on Azmacort but they quit making it. For the first 2 weeks, it was great, my allergies were under control and I could run and had endurance without feeling like I wanted to die. Then the 3rd week came and all hell broke loose. I had 3 days of diarrhea, upper abdomen pain, chest tightness, a cough, crushing chest pain that was brief, some nausea, mild headache, body aches, irritability, and I started to do things not at all like me. The drug maker makes it sound like the side effects are so rare but my research on the Internet would suggest otherwise. I do not know if these problems will go away or not. It's weird because a symptom will appear and then disappear only to be replaced by something else. I did not take it tonight and plan on calling my doctor. It makes me frustrated to think I have stop taking something that actually helped me and gave me such relief because out of no where all of these things started to happen. F 42 3 weeks
30 mg 1X day
11/22/2011
Email
 1  asthma I have asthma, but came down with a nasty case of bronchitis, which I didn't seem to be able to shake. My doctor prescribed Singulair along with a cortisone inhaler. A few days ago I was actually seeing an improvement, but for 3 days I have been plagued with an upset stomach, headaches, sore throat, and a general feeling of hopelessness. I strongly suspect the Singulair and I am going to stop taking it. F 67 7 days
10 mg 1X day
11/13/2011
Email
 5  Athsma/Allergies No side affects. I don't have mood swings or nightmares. Nothing. I started taking singulair because I would get so sick and my nasel congestion due to allergies 2x a year (fall/spring). What a difference. It's like I never get "colds" anymore. I used to feel I had a cold all year long, but after singulair I have no more colds. It's great! My life has changed. I used to loose my voice completely, and I have it all the time now. People should know that my allergies get worse with humidity/heat. When it's cold and very little humidity, I'm great. Unfortunately I still live where it is very humid. I also take claritin D with my singulair. I NEVER have to use my inhalers anymore!! These are the ONLY 2 drugs I take. If I forget to take them, I start with head aches and nasel congestion. Even people at my work notice if I forget to take them. I should mention that I get very tired if I DON"T take these meds. It's hard to breath without singulair and I get very tired. I'm definately more awake and alert. I have year-around allergies and exersiesed induced athsma. I'm also dyslexic. F 45 10 years
10 mg 1X day
10/28/2011
 2  Asthma My daughter takes it... she is 4 years old and has asthma real bad. the side effect that ive noticed 1). really cranky ( she cries a lot) 2) mood change with in seconds. ( she actully slaps her older brother.) 3) complains of tummy ach. 4) Stops breathing at nigh time.. Theres not one night that goes by that i get to sleep alone. because im afraid she will stop breathing. Every since she's been on singulair i've noticed at night that she stops breathing. i have to set her up right to get her to breath.. Its very scary. I read a lot of comments about the meds but didnt think anything of it... tomorrow we are going back to the doctor.. Something just isnt rite. Shes always in a bad mood, and sometimes she hits on her brother (older then her) which isnt like her. And also she tryies to hit me. I hope there is something else we can try because Singulair isnt it.... F 4 1 years
5 1X day
10/27/2011
Email
 2  Exercise Induced Asthma This drug caused extreme emotions and intense mood swings from anxious to depressed and so forth. It also caused me to gain 5 pounds in 3 weeks. I did not notice a drastic enough change in my asthma to mitigate the use of Singulari F 20 3 weeks
10 MG 1X day
10/25/2011
 2  Asthma I had just a small corner of a children's tablet (I believe it was a 10 mg. chewable tablet) and my rear neck muscles got tight and I had problems concentrating for a few hours. I was aware of my surroundings but felt weird in a manner I cannot describe. This was one of the strangest feelings I have ever had. It did stop the asthma, but I would not take it again with those side effects. It just wasn't worth it. My doctor put me on Advair Diskus instead. My allergy doctor said that he found that his patients either respond well to Singulair or they have severe (not necessarily life-threatening) effects. He switched me to Advair Discus instead. M 49 1 days
10 MG 1X day
10/25/2011
 2  chronic sinusitis No side effects I am not getting any relief at all so far from any of the combination of meds I am on. FRUSTRATED! F 28 21 days
30mg 1X day
10/18/2011
Email
 1  asthma very violent behaviour, uncontrollable crying, hallucinations, angry about everything and everyone, panic attacks, anxiety legs itching, abdominal pain, potty accidents After Singulair I stop recognise my child that was the worst thing I did by giving her this drug. She didn't had side effects till about 5 month from starting the drug and I thought that she is "save" I was very rong. I did my research about Singulair before she started taking it and I knew all the side effects but I was thinking this won't happens to me but it did happen.I'm hopping that she will be ok and I will have my little girl back. When I ask her why she is behaving this way she always tell me " I dont know" and that is hart braking.SINGULAIR SHOULD BE BANNED!!!! Don't take it, I will naver give this to my child again. F 4 12 months
4 1X day
10/13/2011
Email
 4  allergies Only side affect I've noticed while on singulair was mood changes, stopped taking it for 4 days and felt terrible!! I felt lots and lots of pressure, very tired, nauseous, headaches, and extreme agitation! I won't be stopping this medication anytime soon.. F 25 1 years
10 1X day
10/4/2011
Email
 3  Asthma I have been taking Singulair for 15 days. For the past 10 days, I have noticed that I often have strange headaches and constipation. Also, I no longer sleep soundly and often wake up around 1:30 am. I have not had any mood changes or nightmares. But, the wear and tear of constipation and sleep deprivation will soon become intollerable and I will ask my doctor to take me off this medication. Singulair has done a great job in helping reduce my asthma symptoms. But, I don't think I will be able to tolerate it over the long term. M 64 15 days
10 mg/day 1X day
10/4/2011
 1  Son was taking for allergies My 5 year old son had severe allergies and was prescribed Singulair. I asked the doc about side effects and she said there were none that she knew of. I believed her and didn't do my own research. He has had unexplainable mood swings, happy one minute and hitting himself in the face the next. Saying he doesn't like himself. Nightmares. complains of stomach pain and headaches. I thought he was just having behavior problems until I got curious and read the ratings about this drug. I'm shocked that this is prescribed to children! I will never give him this drug again or trust his doc! M 6 1 years
4mg 1X day
10/4/2011

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