ZYRTEC Reviews (CETIRIZINE HYDROCHLORIDE)

Average Rating: 2.0 (1816 Ratings)

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 Type: Over-the-counter Drug

  

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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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RATING  REASONSIDE EFFECTS FOR ZYRTECCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
 
 3  Hard Core Seasonal Allergies Zombiness, Short tempered. Wish I had these dream problems, they sound fun! First of all this is the ONLY drug that works for me. I have taken everything to come down the pipes over the last 15 years. Only one other drug has worked for me and the side effects were worse, and it just got discontinued this year. When getting tested my doctor freaked out at my reactions after only a small fraction of the time I was to be tested for... you know its messed up when a doctor get scared :) Problem is, I am sitting here miserable trying to determine if my allergies are bad enough yet to take of the wrath of this pill. I'll turn into a bitchy space cadet with my head in the clouds. Not so sure I can afford it with work and friendships... M 26 3 years
6/20/2007
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 2  Grass, food and dust Allergies My 8 month old son has been taking Zyrtec for about 3 weeks now as he was diaganosed with several food allergies as well as grass and dust. This was about the time he quit sleeping through the night. He has been waking up screaming, as if having a bad dream. This happens about 5 times a night. His cough, runny nose and sneezing have not gone away. After reading comments on this site, we are taking him off of it immediately. I'm convinced he will go back to sleeping better off of the drug. M 3 weeks
6/20/2007
 4  Allergies Sleep much better, possible increased appetite, but also may be the Astelin. Worked great on allergies. Induced sleep helpful because I used to be insomniac! F 33 2 months
6/19/2007
 3  allergic rhinitis / stuffy nose some slight swelling on my ankles, noticed some weight gain by wanting to eat more. I usually take this medication at night before going to bed, and I have to admit the medication does what it is suppose to do with allergy symptoms. I am allergic to dust, dustmites, pollen, grasses, mold, and my symptoms were very severe this spring, so my ent started me back on immunotheraphy. F 54 21 days
6/19/2007
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 3  Year-round allergies & sinusitis severe sedation for 6 months, weight gain, possible others I have been on this medication since its introduction over 10 years ago. While I have not experienced a tolerance to the med, I have, over all of these years, been treated for almost ALL of the side effects listed in this forum (significant weight gain despite high activity, depression, sedation, etc.). Until recently, I was on 2 antidepressants simultaneously (Wellbutrin XL and Lexapro).The thing that is freaking me out is that on 2 occasions that I have stopped taking it, I experienced WITHDRAWAL SYPTOMS like I would expect from going off of a narcotic (abdominal cramping, diarrhea, fatigue). This is my final attempt and I am weaning myself off of it (Zyrtec every 3rd day and taking Claritin on the off days). Pharmacists assured me there was no such thing as withdrawal from Zyrtec. Thanks to this forum, I finally understand. M 48 11 years
6/19/2007
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 1  allergies - pollen, smog, animals extreme sleepiness, extreme dizziness, loss of clarity and memory, stomach aches, vomiting I would need to sleep at least 15 hours a day, and then I would still be groggy. I would forget basic functions (like typing), severe stomach aches that were followed by vomiting. F 29 20 days
6/17/2007
 1  allergies disorientation; severe fatigue; inability to think clearly; constant sleeiness; vivid, horrible nightmares; I was recently switched from Allegra to Zyrtec due to an unexpected pregnancy. I had taken Allegra for years with no side-effects. Immediately after taking Zyrtec, I was unable to function at all. I could only stay in bed most of the day. Thankfully, I am a teacher and this happened during summer break. I can easily see why this medication could cause suicide. I would NEVER take this medicine ever again. F 37 6 days
6/16/2007
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 4  hayfever sedation For me it works best anything else, however it makes me exremely sleepy. Far more than benadryl. So I have to take it at night before bed, whichs helps to fall asleep, but I feel groogy in the morning, probably due to the fact that I really don't get good REM sleep while on medication. I have bad allergies though, so I have to take a trade off. Honestt, the negative effects are better aren't as bad the positive effetcs. after taking t while though, the neg. effetcs are not as bad. M 28 2 years
6/15/2007
 3  really bad grass allergies Weight gain. Initially, severe drowsiness within one to two hours of taking it, but that has subsided. I've only been taking Zyrtec for one month but I have gained five pounds!!! I have recently moved from an urban setting where I walked everyday, but now I am working out almost everyday and eating better!! This is the only new medication I'm on and, after reading some of these comments, I think it's the Zyrtec. I wish they would've listed this as a side effect. I've battled weight my entire life, I certainly don't need this now! F 31 1 days
6/15/2007
 1  Hayfever Bad behaviour! More than usual! My son has special needs and his behaviour is not great as it is! He has been taking this medicine for 2 days and I've noticed a huge decline in his behaviour. M 5 2 days
6/13/2007
 1  Post nasal drip and allergies Anxiety, depression, suicidal thoughts, nausea, diarrhea, gas, heart palpations, flushed cheeks, confusion and sensitivity to light. This stuff is SCARY! I am a 41 year old man and this stuff had me breaking down in tears within 48 hours. I would just start crying over the smallest things. I'm currently unemployed and, although that's pretty stressful, I have never thought about suicide until I started taking Zyrtec. I was nauseas, had diarrhea, and if it wasn't for this website, I probably wouldn't have figured this out! I stopped taking it and I am slowly returning to normal. However, I switched to over-the-counter Claritin and I still have the mild nausea and flushed face. M 41 5 days
6/7/2007
 5  allergic rhinitis, rash, hives No negative side effects. Not even drowsiness. I can take it in the morning. This has been a miracle drug for me. I can live with a cat now, tolerate dust, mold, pollens, etc. Zyrtec is the only allergy med that worked for me. Improved my allergic conjunctivitis & rash as well. F 35 5 years
6/6/2007
 1  allergies, hives Within a couple of days of taking zyrtec, I experienced feeling dizzy, nauseated and like I could fall asleep anywhere, anytime. Within the first week, I started having awful nightmares, very graphically horrific and I would wake up very disoriented. It would take me a good half hour to be able to open my eyes and just get out of bed, then I'd spend the whole day feeling groggy. I thought that it could be the medication, so I stopped taking it for a week. Within 3 days off of it, I started returning to completely normal. I thought that a great way to see if it truly was the zyrtec or not would be to try it one more time. All it took was one dose and my stomach is killing me and I could not wake up this morning for anything. It is 1:30pm and I am just starting to feel awake, however I'm still disoriented. When I called my doctor's office to explain what I've been experiencing, they fluffed me off telling me that the side effects I complain about are not side effects of this medicine. How frustrating! F 30 2 weeks
6/5/2007
 1  Allergies My 4 year old son was prescribed Zyrtec and Singulair last fall. Shortly after beginning, I noticed severe behavioral changes. He become very irritable, aggressive, and non-compliant. He had taken Zyrtec before, and I didn't really notice any changes, so I attributed the behavioral changes to the Singulair. I took him off of both meds and things went back to normal. We started back on Zyrtec a week ago. Five days in, he is exhibiting the same behavioral changes as last fall. I stopped giving it to him today. I really wish that pediatricians and pharmacists would warn parents to watch for these changes in behavior when prescribing Zyrtec. These little guys are at our mercy and don't deserve to have to feel like this. M 4 6 days
6/4/2007
 5  Allergies None Although I wake up with a very dry mouth, this drug has helped tremendously!! M 31 5 days
6/2/2007
 2  Severe allergies Weight gain, drowsiness At first, I called Zyrtec the Miracle Drug because it was the only thing that relieved my severe allergy symptoms of itchy, watery, mucousy eyes; sneezing; runny nose; sinus pain; stuffy head; headaches; and hives. Allegra, Claritin, Sudafed, Nasacort by themselves all did not work. After reading an article and the comments on this board on Zyrtec and weight gain, I am VERY suspicious that Zyrtec caused me to gain about 2 lbs per month, over 20+ lbs in 3 years. Most of the weight gain is in the stomach and, to a lesser extent, in the face, upper back, and thighs. I am normally skinny-to-average in size. Recently, I noticed that when I went off Zyrtec for 3 weeks, I lost 5-6 lbs. When I went back on Zyrtec, I gained 8 lbs in 5 months. I admit I sometimes eat over my caloric count to lose weight of 1,200 calories a day. But I exercise 2-6 times a week for about 45 minutes each. So the 20-lb weight gain seems too severe. I think my age and slowing metabolism, as well as the pill F 37 3 years
6/2/2007
 1  mild allergies hallucinations, trouble urinating, facial twitches, nightmares,insomnia,flushing,visual spotting,headaches,loss of appetite, staring in space,loss of reality,extreme fright,loss of social skills,not making sense when he talks, crying, negative behavior,psychotic It has been four weeks since his last dose of Zyrtec and he is still not back. I am sick with worry and am afraid that this is permanent damage. He went from being a super star at preschool to jumping on tables and crying and screaming. He had a ct scan and eeg both were normal. Pediatric neurologist said that it was a toxic reaction to zyrtec and it would wear off. How long does it take to wear off? If anyone has any insight to calm down a distraught mother please e-mail me. I have been crying every day and I am so afraid he won't come back. M 5 3 weeks
6/1/2007
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 5  Seasonal and pet allergies Mild tiredness. I love Zyrtec! I had to go off it during pregnancies and MAN did I miss it! I just went to renew my scrip and my insurance company has dictated that I have to try Allegra first before I can go back on Zyrtec so I'm completely irritated by that. Anyway - Zyrtec is the only drug I've found that allows me to be symptom free during the height of spring and fall allergy seasons. Plus, when I had a pet, I was able to be around it and not suffer. Yes, tiredness was a factor, but I could handle it since I was able to breathe! F 39 5 years
5/31/2007
 3  seasonal and cat allergies none I have never had any side effects whatsoever to Zyrtec (unlike everyone else posting here). It has worked somewhat for my allergies. I'm starting to think I've become immune to it though. F 24 6 years
5/31/2007
 1  Allergys/Asthma Been on zyrtec for a little over a month, twice daily, I am 26 and have never had any problems with my thick gorgeous hair, now I am loosing it in record timing. The drug works great if you dont mind going bald...Ladies I'm talking to you! F 26 30 days
5/27/2007

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