ZYRTEC Reviews

Average Rating: 2.0 (1790 Ratings)

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 ANTIHISTAMINES

 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  allergies Drowsiness, stomach upset, next-day headaches, dry mouth, lethargy After reading other posts, I realized the loss of mental focus I had may not have been all stress - sure enough, when I go off meds, my energy is better. But then, my allergies flare and I'm heartbroken if think I'll have to give up my cat. I am trying natural products, with small effectiveness, and taking Zyrtec only when I'm having an awful sneezy-itchy attack. Otherwise, I am so discouraged by all the side effects of allergy meds I wonder if they are worse than the allergies themselves. My natural plan includes quercitin, nettle and the OTC "seasonal relief" airborne allergy mix - it does seem to help a bit, with no side effects (even a little burst of energy). Interestingly, I've also gained weight, again I blame school stress but it does happen to coincide with my reliance on Zyrtec. F 42 1 years
3/29/2008
 1  Dr. recommended for sinus problems change in mood, sleepyness I took this drug at 6 in the evening and I had a hard time waking up in the morning. I also was yelling a lot at people, to me I seemed to be extremely angry. I took Zytec for 2 days, when it was time for my next dose I did not take it. Within 24 hours my mood was back to normal. I felt like I had been possessed. F 51 2 days
3/28/2008
 1  pollen allergy high level of irritability!!!!!!!!!!!!!!!!!!!! If I could have given this drug a negative rating I would. About 5 days ago, I started taking OTc Zyrtec-D for my spring allergies. Helped with sneezing during the day, , did nothign for itchy eyes, increased itchiness in throat, did nothing for congestion, and yet I was still left with a drippy nose. Incredibly uncomfortable since I now have blisters forming on my nose from where I've rubbed a tissue all day. Was really irritable this week which has culminated in several arguments with my wife. Not sure if the irritability is a side effect of the medicine or just a result of paying over $1 per pill and still being left with most of my symptoms. FYI, I am writing a complaint to the makers of this drug. Probably won't do any good but it will at least make me feel better. M 27 5 days
3/28/2008
 1  allerigies a fast feeling of nausea, lightheadness, shaking, just generally not feeling right F 46 7 days
3/27/2008
 1  CHRONIC COUGH FROM POST NASAL DRIP THIS STUFF IS AWFUL! THE FIRST PILL KEPT ME UP ALL NIGHT. THE THIRD PILL GAVE ME HORRIBLE ITCHY WELTS ON MY FACE & CHEST. MY HEAD FEELS WEIRD. ITCHY ALL OVER & ACHEY--I'VE NEVER FELT LIKE THIS IN MY LIFE. I'D RATHER HAVE THE FLU ANYDAY. DO NOT TAKE THIS DRUG! I GOOGLED THE SIDE EFFECTS AFTER I GOT THE ITCHING & WELTS. WISH I'D KNOWN SOONER. I'VE NEVER FELT SO ROTTEN IN MY LIFE. HOPE SOMEBODY OUT THERE PUTS THE COMPANY OUT OF BUSINESS. M 56 2 days
3/27/2008
 1  allergies Dizziness, shortness of breath, hives, high anxiety, rapid heartbeat, tremors....just about every side effect listed. I tried OTC Claritin for allergies, but it didn't help. My doctor gave me a week's supply of Allegra, and it worked great. When that ran out, I tried OTC Zyrtec, with disastrous results. I called 911 after suffering nearly every side effect. I would NOT recommend that anyone take this drug, especially children. M 39 1 days
3/22/2008
 2  allergies - severe sinus mood swings, irritability, frustration and anger, painful swelling in neck, lethargia, heaviness of limbs and difficulty moving, insomnia the side effects were very noticible to others. my boyfriend was very concerned about me and begged me to stop taking it. F 34 1 days
3/18/2008
 1  Sesonal Allergies Fatigue, Lack of motivation and concentration, muscle fatigue, heart adding a beat off and on, and nervousness feeling. I have been taking zyrtec for about 7 years and have taken it off and on each year for allergies. I have never put two and two together before, but I have always lost my energy and motivation after taking zyrtec. I always thought my lack of energy was from the allergies. Its been getting worse and worse year after year, so i finally did research and look what i found; looks like i am not the only person with this side effect. I have stopped using zyrtec for a week now and still am not feeling myself and am wondering how long it took before people felt like it was totally out of their system. I am stopping zyrtec all together and I hope my allergy shots will be enough to get me through the seasons. I am not using any other medicines - only saline nose spray and the occasional IBprofin. M 33 7 years
3/18/2008
 4  Allergies extreme irritability, anxiety, quick to anger, strange dreams Allergy symptoms (runny nose, itchy eyes, scratchy throat) started to subside within the first few hours and were completely gone within 3 days. It is the first March in almost 10 years I have not had any allergy symptoms. I had been using benedryl, but it made me tired and a little "spacy". Claritin would work sometimes, but when seasonal allergies were bad, it didn't really work. I have had ear infections, conjunctivitus and had miserable allergies. The disadvantage, is Zyrtec seems to be making me a little crazy. I have been very irritable since I started taking it. I have to weigh my sanity vs. my allergies. I am hoping I can control the mental aspect, and have Zyrtec control the allergies. I am hoping for the best. M 36 15 days
3/17/2008
 2  seasonal alergies sudden weight gain, sore breasts, fatigue I took this medication a few years ago when I was having bad allergies during pregnancy and loved it then - it definitely got rid of my allergy symptoms. And when I saw that I could buy it OTC I was really happy and ran out and got some when my seasonal allergies kicked in. In the past couple of weeks I have gained 5-10 lbs, despite the fact that I am now exercising regularly and more than I have since my first child was born almost 7 years ago. I realize now that I didn't notice the weight gain the first time because I was pregnant and gaining weight anyway! I have been so frustrated with the weight gain because this is not usually a problem for me and now I find myself thinking about eating all of the time and it feels like a vicious cycle - after reading all of these comments I feel a lot better and am going to stop taking the zyrtec and look for something else. I hope it comes off as fast as it piled on... F 42 3 weeks
3/17/2008
 1  Allergies Very very bad headache migrain like, loss of appetite, trouble focusing, trouble paying attention, right side of neck swelled up and bothered my ears, fever, & allergy symptoms worse. I could have a head cold but I swear I was fine untill I took 3 of these pills I just got progressively worse. Dont take this over priced medicine. Advil Cold and Sinus is #1 for me. F 25 5 days
3/17/2008
 1  Allergies Depression, temper-tantrums, mood swings. This is like a body snatcher. I've been fine, then after the zyrtec, I want to kill myself. NO ONE TAKE THIS MEDICINE! M 12 3 months
3/14/2008
 3  Allergies, mainly nose/sinus Zyrtec helped a lot while I was taking it but it is VERY DIFFICULT to get off of! I have tried several times and always go back to it because of problems sleeping, anxiety, rapid heartrate, moodiness, fatigue. What the???? I thought this was non-habit forming! I think ANY drug can become habit forming - physically and/or psychologically. Keep that in mind and, if possible, go off of it for 1/2 the year (during low allergy season). F 42 5 years
3/10/2008
 1  Allergies aggressive bad behavior, irritability, temper tantrums over tiny thing. Would go crazy like a wild animal then crash down to a sobbing little boy. Never will i give this to my son!!! We know it's the Zyrtec causing this behavior for we tried it two different times. Claritin has given him the same side affects also. We would rather see him suffer the allergies than be on these meds. M 6 6 days
3/10/2008
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 5  Allergies None My doctor prescribed Zyrtec for me because Claritin was not working very well, I get severe emotional reactions from Benadryl, and other antihistamines pushed up my blood pressure. I was surprised to see some of the reactions some people have had, but I guess no drug is right for everyone. This one is by far the best for me, and I am glad it is now OTC, which makes it more affordable. F 49 2 years
3/9/2008
 5  allergies drowsiness I've taken zyrtec for a few years and never had any side effects except drowsiness. Take it at night! Works great for me, can't complain!!! F 32 2 years
3/9/2008
 1  Dust mite and mild cat allergies Erratic behavior without recall, irritability, WEIGHT GAIN (25 lbs in 8 months with regular, vigorous exercise and healthy eating habits). N I have never had problem losing weight if I happened to gain any for any reason. I have been struggling for months to lose and have in fact continued to gain instead.

My wife and i have been arguing over meaningless issues. We thought b/c we have a baby coming and the stress of our first child coming, but this makes no sense b/c we're both thrilled and excited about it... I stopped taking Zyrtec Thursday and we haven't even so much as disagreed about anything, much less argued to any degree since.

I have had a few episodes of erratic behavior. One night my wife asked me for an ice pack. I brought her a wet paper towel and was insisted that's what she asked for then went straight to bed without getting her ice! This is EXCEPTIONALLY ATYPICAL behavior for me. **I did not remember this the next day. It was like I was acting in my sleep. Another time she asked me for ice and I brought her a bowl of soy milk, hoping that she could explai
M 35 8 months
3/9/2008
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 3  hay fever weight gain, breast tenderness and swelling, mood swings I was taking Zyrtec couple years ago and noticed the constant desire to eat, and rapid weight gain. My doctor swore it couldn't be due to the Zyrtec, but I tried another med. When I noticed it was now available over the counter I decided to try it again about a week ago. In that time, my breasts are swollen, as if in the early stages of pregnancy (I'm not,) I've gained at least six pounds and I have no patience at all. F 42 7 days
3/8/2008
 3  Severe environmental allergies Weight gain, restless sleep, fatigue, lethargy I couldn't understand gaining 15 pounds in 3 months when my diet and exercise habits had only positive changes. I attributed it to being a newly wed and moving into our newly built house. My energy and motivation level have dropped noticeably--again I assumed it was from being "settled". I'd recently started thinking I was pregnant, which isn't the case. Only today did I realize it could be the Zyrtec, which I started in November of 2007, so I ran a google search revealing I may be correct. I'm requesting my doctor prescribe something else and going off Zyrtec today. F 26 3 months
3/6/2008
 1  allergies Depression/moodiness, sleepiness, weakness/fatigue, memory problems, confusion, tremor, trouble focusing, etc..., etc... It worked on my allergies! To be fair I typically have some mild depression, but this stuff was ridiculous. I was about to schedule and appointment with my psychiatrist and inquire about some anti-depressants or something. I couldn't think, sometimes I would want to just sit there and stare at the wall. M 26 6 weeks
3/5/2008
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