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
 
 4  allergies, mild asthma felt slightly flushed after my first dose. None since Its worked pretty well for mild asthma. There have been a few times where it stopped working and I quit taking it, sufferered for a few weeks and started taking it again and it worked again. I wish that wouldn't happen, but otherwise it has been really helpful M 36 5 years
10/27/2007
 4  constant sinus infections Just started to do research into possible side-effects of Singulair. This is after 3 weeks of chronic fatigue, decreased sex drive and occasional rage issues. Aside from the side-effects of this medication it has been a wonder drug for me. This time last year i had bronchitis twice and pneumonia once (brought on by chronic sinusitis). I do now realize that my fatigue and decreased sex drive may be caused by Singulair and plan to reduce how often i take it. M 36 6 months
4/7/2008
 3  Asthma, allergies (son and daughter Daughter - anxiety, severe stomach pain (esp. at night), mood swings, unreasonable fear, nightmares, crying and tearfulness Son - leg pain, irritability and anger, mood swings - he'd go from angry to crying in seconds, inability to focus, forgetfulness My children have been on this medication for over 2 years and I never associated their symptoms with this medicine until my husband found this website. I am horrified that I have kept my children on this as long as I have. It did control their asthma, but it is not worth the misery that the side effects have caused in our lives over the last couple of years. My daughter has been put through several tests to determine the cause of her stomach pain (all tests have come back normal). Why did her doctor not mention that this could all have been because of the Singulair, she knows that she is on it. My daughter stopped taking the medication last week (allergist's orders) and there is already a decrease in nighttime stomach pain and in nightmares. Since reading this site, I have decided to take my son off of the medication as well. I feel so horrible about all of the suffering my children have endured. My son's symptoms have not been as interfering as my daughter's, but I can't bel F 36 2 years
11/30/2008
 3  Asthma Weight gain, bad dreams, depression, twisted and perverse thoughts, anxiety, and dehydration. I am also taking Symbicort which strangely brings some of the same side effects including headaches and eye strain. M 36 2 months
11/17/2008
 3  Seasonal Allergies and IC VERY Vivid Dreams - mostly in the nightmare category While this med has truly helped my seasonal allergies and my IC symptoms - I am becoming quite concerned about the vivid dreams I am experiencing - I have been on this medication for approx. 2 months and all of a sudden the last 5 constant nights I have had horrible - nightmares - that are VERY vivid - Does anyone know if a delay in symptoms like this is possible F 36
6/3/2008
 3  Allergies Was working well for the first 3 days until i found myself becoming withdrawn and sad for no apparent reason. Headaches, anxiety, weird dreams, rash on my chest and tingling in hands and feet developed around the 8th day . After 14 days during my follow-up with the ENT, he told me to stop as i was sensitive to the drug. I am ALOT BETTER NATURALLY !!! I would never use this or any drug that interferes with the brain again. Always read side effects of your meds and if u notice any that makes you uncomfortable, STOP ! For my allergies now, i treat myself naturally with ALoe Vera juice , netipot, olbas oi, vitamin c and avoidance to the allergens. Keep your surroundings clean and free of dust at all times and eat healthy. F 36 14 days
10mg 1X day
9/30/2012
 3  Severe asthma and allergies Irritability, anger, frustration, depressed mood. I have been taking this for 2 years and it really keeps my asthma under control but I have always been very level headed and patient and lately I have felt just sooooo quick to anger. I stopped taking and it is like a valve has released way less angry and more happy. It is hard though because it really helps my asthma so much. Allergy season is hard to get through without it. F 36 2 years
10 mg 1X day
3/15/2021
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 2  Asthma triggered by allergies mood changes, intense worry, spontaneous weeping, sleep walking, aggression, absent minded, vivid disturbing dreams, lack of concentration, dizziness Started zafirlukast (Accolate) in 2009 with Qvar, to control asthma. My asthma is much better controlled. Switched to Montelukast (Singulair) 1 month ago, was instructed it is the same class drug. When I started Accolate my life was in a major shift. I started having intense feelings of self doubt and worry, accompanied by vivid, strange dreams. I just figured it was stress. Years have gone by on the Accolate, the worry and dreams have persisted. The worry is accompanied by fits of weeping. I get dizzy, have trouble concentrating & feel like I'm not as sharp. Then there are the dreams......! They are INTENSE, horrible, colorful; motion picture-like. These experiences were previously just not normal. Roll forward to the last 6 months. I started having events of "sleep walking". Never had them before. My husband reports that I wake up, go to the bathroom, come back & start verbally abusing him. The events happen randomly. Been on Singulair for the last month. I take it in the morning to avoid the dreams. They aren't as bad, but they are still present. Last night I had another sleep walking spell. This time was the same as before (I'm told) but this time I struck my husband hard enough to split his lip! I do NOT hit. That is NOT who I am!! What's worse, I have ZERO recollection of the incident. He told me I hit him with my right hand, I'm LEFT HANDED. I can deal with the depression & dreams. I CANT deal with violence/abuse. F 36 30 days
10mg 1X day
5/13/2015
Email
 2  Constant Sinus Infections irratible, joint pain, and most important erectile disfunction.(Never Had a Problem before!) I am sure it works for some people but I've been on it now for 100 days along with antibiotics and still have sinus infection. M 36 100 days
10/11/2006
 2  allergies, esp. with exercise Lethargy and depression. Immediately noticed difficulty focusing, low energy, and low mood. Weepy and sleepy for no good reason. F 36 3 days
1X day
4/30/2010
 2  Seasonal Allergies Intense headaches (Felt like someone was putting an ax through my head!), "fuzzy" head Didn't help the allergies enough to warrant putting up with the side effects. Stopped after 2 weeks and headaches subsided to more "normal" allergy related headaches. F 36 2 weeks
10 mg 1X day
9/6/2010
 2  For allergy induced asthma My 8yo son has been on and off Singulair for 3 years. The usual amount of time is 3 months and he tolerated well. This time he has been on it for 6 months and at hte 5month mark something started happeneing to him: vivid nightmares, obsessions, horrible thoughts (about death), thinking about hitting others, anxiety and crying and the list goes on. I am so glad i found this site. I took him off 4 days ago....slight decrease in symptoms. how long until he gets back to his old self? Does anyone know a time frame for this horrible drug to get out of a child's system? It breaks my heart to have my son suffer like this.... F 36 6 months
9/12/2008
 2  To prevent asthma attacks. Very heavy sleeping, difficulty waking up in the morning, general fatigue, unusual irritability. I'd hate to think of how irritable this drug might make someone who isn't as laid-back to begin with as I am; I would not be the least bit shocked to find out it is a factor in more than merely negative thoughts. After learning of other users' side effects, I have decided to discontinue using Singulair. This drug should not be prescribed without serious warnings about its side effects. What if somebody who (unlike me) already has a short fuse and has many sources or irritation (perhaps difficult children?) were to be prescribed this drug without being warned of the possible side effects? I'm glad to hear that Singulair helps some users as much as it does, without giving them the negative side effects. It's apparently not the right medication for me, and my doctor apparently needs to learn more about the possible side effects. M 36 21 days
12/30/2004
 1  Breast augmentation/scar tissue Increased anxiety which I now know is directly related to the weight gain I have experienced. Sore muscles, to the point I had to go get a massage thinking it would help. Insomnia, as I couldn't stay asleep for more than 4 hours. I wasn't even prescribed to take it for alleriges/asthma. My doctor recommended I take it because I had breast implants and I delevopled scar tissue. Singulair has shown to decrease the chances of this happening. F 36 3 months
9/11/2007
 1  Sinus Rhinitis Depression, suicidal thoughts, nightmares, insomnia, irritability, constant PMS type symptoms, migraines (sick migraines - puking), dizziness, nausea, forgetfulness, anxiety, rapid heartbeat, exhaustion, loss of interest. I started it in May 2007. I had PMS type symptoms all through May and June. I couldn't stay asleep at night - would wake every hour or so and then take 2 hours to get back to sleep, then wake up an hour or so later. When I did sleep, I had horrible nightmares. My blood pressure shot up (it was already borderline since last year! 140/90). My heartbeat last week was 112 beats per minute. My blood pressure was 155/111. I was irritable, suicidally depressed (it was like it told my Cymbalta to take a hike!), exhausted, had anxiety attacks, and dropped weight rapidly (I've lost 22 lbs in 8 weeks). I don't know if the weight loss was because of Singulair, or because of Lean Cuisine, but I've lost 22 lbs. I stopped taking it on July 6th, 2007 and I'm almost back to normal. They really need to take it off the market. It's no good. F 36 2 months
7/12/2007
 1  allergies nigthmares, fatigue and massive depression i was prescribed this medicine to take for allergies. i am actually asthmatic and have never heard of this medicine and have been shocked by the massive side effects, i have felt in only 4 doses. each night, i ahve had nightmares, that i couldnt get out of, and that caused lack of sleep and then during the day have felt the worst sort of depression one could feel - like the world was ending and i could cry over anything. i was aggitaed and snappy ...... and i am a pretty happy, balanced person. PLEASE ask your doctor for more information before you take it and BE CAREFUL, there is something in this drug that is lethal F 36 4 days
1/3/2010
Email
 1  Asthma Dramatic mood changes / extreme aggression My 8 year old son has been diagnossed with depression and is on a mood stabilizer and anti-depressant. After several painful months of trying to figure out what was going on and how to help him cope. We FINALLY got him to a place where he could control his behavior, emotions, and just be a happy kid. Then he was diagnossed with Asthma and was put on singulair... Now we are seeing extreme rage and anger in him once again. The only changes was by adding this medicine. The psychiatrist and pharmacist both said adding this medicine to the two he is already taking should not have any effects on him. If they only lived in my house?? I don't think they would feel the same way. F 36 3 weeks
10/14/2009
 1  allergy induced asthma Took while pregnant due to worsening asthma symptoms. Made me very emotionally numb, detached, angry, impatient, full of rage and hateful! I lost my visual depth perception and developed bad neck swelling with headaches. I also noticed it made my breastfed baby colicky and sedated. I had the WORST withdrawals from this medication including EXTREME anxiety and panic attacks! I hope to God this hasn't left me with permanent damage or hurt my baby since I took it while pregnant! F 36 1 years
9/8/2009
Email
 1  Asthma I took both Singulair and Accolate which is in the same class of drugs when they first hit the market. I experienced tingling in my legs, visual changes, and memory loss. Everything but the memory loss resolved as soon as I stopped the drug, the memory loss gradually improved over a year or so but I'm convinced impacts me to this day. Clearly it wasn't worth the side effects, but the drugs made me 100% symptom free from my asthma. F 36
1X day
5/28/2010
 1  allergies I felt extremely, extremely tired. It took an incredible amount of effort just to get myself out of bed. I had to fight to stay awake throughout the day and felt like I was moving through quick sand. It did clear up my congestion, but wasn't worth feeling like I wasn't participating in life. I went off after the second day and have returned to the land of the living! F 36 2 days
10mg 1X day
3/26/2010

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