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)

  

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.)
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
 
 5  Asthma, allergies No side effects that were so bad that I noticed them! Having suffered severe hayfever each summer since I was young and being so fed up of suffering during pollen season I was prescribed Montelukast 10mg, symptoms disappeared, I was diagnosed with asthma aged 4 in 1987 F 28 3 months
10mg
1/11/2012
Email
 5  Allergies No side effects. Greatly reduces my seasonal allergies to the point where I rarely need to take an anti-histamine (though I still do if I don't get enough sleep which makes my allergies that much worse). M 28 2.5 years
9/12/2006
 5  to improve asthma conditions i havent really experienced any side effects with singulair. After reading people's comments i really got nervous that i would experience these terrible mood swings, or depression but i did not at all. Singulair is my oxygen. It has helped me cut down tremendosly on my short term inhaler. I take advair and singulair together everyday and they have done wonders for my asthma. The advair alone was not working so my doctor added me on singulair about 4 months ago and it has been the best decision. F 28 4 months
10 1X day
7/5/2011
Email
 5  Asthma None I love this medication. I have been fortunate not to experience any side effects and have had lots of benefits. My asthma is never better than when I am on Singulair and it knocks out my allergies which are a main cause of my asthma. My mother had temporary depression when she started this medication but I never experienced that. F 28 3 years
10mg 1X day
6/30/2010
 5  asthma, allergies none F 28 1 years
4/28/2003
 5  Asthma Interrupted sleep & insomnia at the beginning, but I managed by taking the dose at 7-8 PM instead of right before going to bed as prescribed. Possibly heightened senses (smell & hearing) but this could also be due to a healthier diet. Interestingly I feel a lot more patient with people, more positive, and less anxious than before starting Singulair (not sure if it's the diet or Singulair but I won't complain!). It works so well for asthma, I don't need to constantly worry about it anymore. I still need to use my inhaler before exercising but otherwise I rarely need to use it, I only need it sometimes for minor symptoms after dusting & cleaning the house. I'm very satisfied with it for now, although I'm a bit scared to develop side effects long term. F 28 7 weeks
10mg
11/4/2014
 4  Asthma Works well for my asthma. Recently switched to the generic. Was fine with Teva generic and now experiencing headaches with the Glenmark generic. Don't know what could be different but I get cluster headaches within an hour of the dosage. Want regular Singulair back. F 28 7 years
10 mg
9/4/2013
 3  Asthma and allergies My doctor started me on Singular because I would wake up every night about 3 am gasping for air. He prescribed this more for my asthma then my allergies. Within days, I was sleeping through the night and my allergy symptoms disappeared. It was like I never had asthma. A few months later, I started having panic attacks in ramdom places where I was not under stress. My dreams and nightmares became more vivid and pretty distressing. I started seeing things move out of the corner of my eye when there was nothing there. My sex drive disappeared entirely. Then, I started hearing voices in my head tell me to kill myself. (At this point in my life, I had a good job, was going back to school partime, and had the most wonderful boyfriend. There was no reason for me to be unhappy) I had enough sense to realize that this behavior was unlike me and then found this site and saw that I was not crazy. I went off the pill and all of the side effects went away in 2 weeks. I took it once after having an asthma attack and had a panic attack within an hour. That was all the validation I needed. I've been off of it half a year and am back to normal except for my sex drive. I hope it comes back. Did anyone else have problems with their libido? The doctor cannot find anything wrong with me but I suspect Singulair. This is ruining my relationship. Help! F 28 1 years
7/23/2009
Email
 2  Chronic rhinitis Balding, myopia, acne, aggression, and hard to focus. I tried going off Singulair two years ago, but after taking it for so long my body seemed to be addicted. I had a large wax buildup in my right ear that got infected. Other than that I loved being off the stuff. I was insanely productive at work. The ear pain finally got to me though. I went on a quick prednisone burst and got back on Singulair. The shysters at Merck decided to raise the price again, and now that it exceeds what my insurance will pay so I am going to go off it again. I am armed with Loratadine(Claritin), pseudophedrine, guaifenesin(Mucinex), and Nasonex so hopefully I will make it this time. Wish me luck. M 28 8 years
6/26/2007
 2  Asthma Severe dry mouth / thirst. Had to stop taking it. Medication worked well but the severe dry mouth / thirst was intolerable. Yes, i drank plenty but it did not help. M 28 5 days
10mg 1X day
9/10/2010
 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  Allergies Anger, tantrums, aggression After reading the post below me, I burst into tears. My 4 year old has been on this for 2 years now. I stopped it about 3-4 weeks ago because I just plain forgot to pick up the prescription. My son has been having SEVERE anger and aggression, which is NOT his typical behavior. He is being suspended from the YMCA with calls home from Kindergarten as well. What freaked me out about the post below, is that in counseling, when asked why he does these things, he says it's because his brain tells him to. He cannot describe WHY he gets so angry. He hits other children, gets really, well, CRAZY with me, and doesn't care at ALL about consequences. It sounds like most of you experienced a difference when the medication was stopped. I haven't yet, if nothing it's getting worse. Does anybody know if this is normal, maybe with the length of time he was on Singulair? I have him in counseling now for his behavior and never once thought to link it to his medication. He is normally such a sweet and loving and caring child. Please email me with any info any of you have on the length of time it takes for them to go back to "normal". [email protected] F 28 2 years
4MG 1X day
9/24/2010
Email
 1  Allergies/Asthma Chronic Rhinitus Severe Nightmares, Moodiness, Panic Attacks I was only taking this product for 6 days. I noticed I had a severe nightmare the first night I took the product. I did not realize until the next day that bad dreams/nightmares were a side effect. 5 days later I could not sleep, my mind was racing, and I was having a panic attack and could not keep a clear thought. I will NEVER use this product again and would not recommend it to anyone I know. F 28 6 days
9/21/2005
 1  Asthma total loss of concentration, loss of motivation, anxiety, depression, mood swings, irritable, dizzy, nauseated, vivid dreams, tired, can't exercise without becoming incredibly dizzy, can't think straight, acid reflux, HUNGRY, general feeling of being unwell. I was really hoping I would be able to continue to take this drug, because my asthma has completey cleared up. I have used my inhaler maybe twice all week, where I was using my inhaler three or more times a day. I just can't live with these symptoms. It really is a shame. I don't understand why these symptoms aren't listed on the package, especially when so many people are all experiencing the same thing. F 28 7 days
3/2/2007
 1  Asthma/prevent colds The most serious problems were severe depression (one suicide attempt), anxiety, and violent tendencies (I had to be kept away from disciplining my pets, for example). I would recommend that anyone who takes this drug be aware of the potential side effects. These side effects were *not* listed on the drug insert when I first started taking it in 2006, and I did not check any of the new ones, thinking I had read it all before. 3 months after I started taking singulair, I sought help for psychological issues and was on anti-depressants/anti-anxiety meds for about 2 years, consequently. My docs thought my psych. problems were just a delayed reaction to my father's death 2.5 years earlier. Turns out, it was the singulair. Luckily, I figured out the cause was singulair when I developed GERD and the new doc I was seeing asked me to research all of my FOUR medications I was taking a day (2 of them to offset the problems with singulair that I was not aware of) to see if any could be the cause. I found out about the problems others were having and quit taking all my meds 2 months ago. I finally feel like myself, again. Be informed, people, and parents, pl 28 2 years
3/19/2008
 1  middle ear fluid, allergies Mood altering, disconnected with world, depressed, unable to focus, lightheadedness My doctor added Singulair to my allergy regimen as I complained of lightheadedness and middle ear fluid. I took this for just over a month with NO success in helping my lightheadedness. If anything, it INCREASED it and then affected my mood. Before taking Singulair, I scoffed at the idea that a medicine for something like allergies could really affect your mood/way you thought. Boy was I wrong. This drug really altered my state my mind, to that point where I cried in front of mirror screaming "what is F*ing wrong with me! Why can't I snap out of this! I can't go on like this!" I was SO scary. I didn't connect the mood change with the drug until I read about the side effects. My doctor NEVER told me about any mood side effects. The bottle does state this, but again, I was a believer that it was probably so rare that I shouldn't worry. :( PLEASE, if you took this medicine and your state of mind is dramatically different than normal, tell your Doctor and stop taking. Within two days, I felt much better, though my ears are still clogged daily. F 28 45 days
1X day
8/9/2014
Email
 1  Exercise induced Anaphylaxis Joint pain predominantly knees and wrists, severe depression, suicidal idealisations. Extreme weight gain 30kg in 5 months. I came off it and yet after 3 weeks I still don't feel any better, if anything I feel worse because now I can't sleep because of the depression. My menstrual cycle is all over the place from starving myself thinking I must have been the reason for gaining weight. F 28 5 months
10mg
4/19/2015
 1  Severe allergies Singulair (an allergy medicine) caused me to have suicidal thoughts and I put a fork to my throat this morning over something stupid and my mom talked me out of it. I'm not the suicidal type and Singulair almost made me take my life. I also have had aggression, worse depression, rage, and not giving a rats booty on what I say to anyone. I talked to my mom like she was a dog and I'm not that kinda person. I even cussed my own husband out a couple times. I would NEVER talk to anyone like that! I was literally scared of myself. I even broke something of my great great grandmothers and it was one of the last objects my mom had of hers. I'm not the violent type at all. I'm hoping within a few days I can start feeling better. This medicine needs to be taken off the market. F 28 40 days
30mg 1X day
8/12/2021
Email
 1  asthma and sinus problems chronic anxiety, shakes/tremors, rapid heartbeat, sore throat, flu like symptoms {even though no temperature}, headaches, tiredness, sinus pain seems worse. DO NOT TAKE THIS DRUG, ITS VENOMOUS AND DANGEROUS. I started taking montelukast 3 days ago for loss control of asthma and its been the worst 3 days of my life. they didn't warn me about the side effects for people with current mental health issues and anxiety as I am a bit sufferer and it's made it 10 times worse. I am shaking all the time and feel a sense of doom and I'm on edge all the time and can't think straight. it's not really made a lot of differance with my breathing and still have a blocked nose with quite tender sinusis. I also have aches and pains like I have the flu, and a sore throat to go with it although my temperature is normal, absolutely will not continue with this drug and will just stick to my preventer and my ventolin from my on.. it's scary how it effects people's mental health and should come with a warning and a doctors should warn about this serious side effects. luckily I haven't had the suicidal thoughts yet but it's a awful drug and I do not recommend it at all. I'd rather be on a more powerful preventer and cling onto my ventolin the feel like this. F 28 3 days
10mg
5/1/2020
 1  Asthma Depression DO NOT TAKE! ITS NOT WORTH WRECKING YOUR MENTAL HEALTH JUST TO BREATH. For 2 years and 9 months I was fine, but in August of last year I noticed I was depressed feeling (totally unlike me!) Didn't really link it to anything other the pandemic. Nope. Continued to get more depressed. Planning on discussing with my pulmonologist on safely discontinuing this drug! F 28 3 years
10mg 1X day
3/6/2022

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