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
 
 1  Year round allergies I have taken generic Tavist for many years. It became hard to find and I thought I'd try the newer wonder drug, Zyrtec. I took 1 pill last night, along with other meds I normally take. I've been extremely drowsy all day. It isn't wearing off. I will not take it again. I thought this was one that did not (generally) cause drowsiness. For me it is currently debilitating. I am waiting for it to wear off after 20 hours the drowsiness is increasing if anything. I napped this afternoon! I don't plan to try this again. I have taken antihistamines my whole life but rarely been this drowsy from any of them. Oh, it worked - no allergies today - but it's not worth it. I'm afraid to try again, although might try the lower dose at some point. F 62 1 days
10 mg 1X D
5/20/2011
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 2  Seasonal Allergies Took for years without any problems. Just started taking again to help with allergies and allergic asthma and have been irritable, depressed, and overall just feeling crappy. My brother said he had the same problems and was just intolerable to people. F 32 4 years
10 1X D
5/14/2011
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 1   Feel like a Zombie ! Feel depressed ! Mood - Mad at everyone and don't know why i'm so upset . Have no energy to get up to do anything worse on fourth day ! I came to the internet to see what was going on with Zyrtec. It's the only thing i had changed this week and I can NOT get up out of the bed in the morning. Feel like a Zombie and not connected with the world. I will not be taking anymore of this ! F 48 4 days
10 1X D
5/14/2011
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 5  severe allergies, asthma rarely dry nose, but a hell of a lotbetter than a runny one! This medication is AMAZING for allergies! love it F 14 3 years
10mg 1X D
5/10/2011
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 4  Allergies and sinusitus The only possible side effect I've noticed is dry nose. This is irritating and sometimes painful. I've taken Zyrtec year round for years. I still need occasional decongestants when the pollen is bad, but overall, it works pretty well. I sleep great and have a very level mood and am a happy person. I never realized how great this stuff was until I tried switching to Allegra this week. Compared to Allegra's side effects, Zyrtec's are nil. Thanks Zyrtec!! F 43 3 years
1X D
5/5/2011
 1  allergies My daughter (almost 10) has been taking since March. She has become very depressed, irritable, goes into rages that last up to 2 hours. Her pupils become dilated and its like she is not even there. So bad we had to call police on her! F 10
1X D
5/4/2011
 1  seasonal allergies Vivid, strange dreams, unable to wake up all of next day, dizzy, jumbled thoughts, afraid to drive in this condition Totally disfuctional today. I am not usually over reactive to any drugs. I am on an anti-depressent (in case that info helps someone see a pattern and/or protect others or themselves). I tried this today because Claratin didn't do anything for me last season. F 47 1 days
1 pill 1X D
5/3/2011
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 4  Severe allergies At 10 mg taken at bedtime this was the most effective antihistamine I ever tried - and I tried many! But the tradeoff was a nasty Benadryl-like hangover upon awakening and until after lunch. I then tried 5 mg at bedtime and could not believe the difference. My allergy symptoms indeed crept back a bit, as in occasional sneezing or itchy eyes, but the improvement in mental state was huge and definitely worth it. I now use some backup treatments when needed, like Nasonex, Nasalcrom, and even butterbur. All those miserable with 10 mg - do yourselves a favor and reduce the dose to see what happens. M 51 1 years
5 mg 1X D
4/27/2011
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 3  Allergies Fatigue, drowsiness, headache Not sure that this drug is a good fit for me! I felt ok during my first dose yesterday -- a bit tired, but I think my allergies improved. My second dose today, however, made me extremely lethargic!! F 30 2 days
1X D
4/23/2011
 2  Allergies Extreme sleepiness for 24 hours after taking 1 Zyrtec. My son, who was 5 at the time, had mood changes - was mean and crabby - when taking zyrtec. F 51 1 days
10 MG 1X D
4/22/2011
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 3  Seasonal Allergies Stabbing headaches, drowsiness, stiffness in upper back and unable to get a good sleep. I've been using Claritin for the past few years and decided to try Zyrtec for the first time this season. I don't like to take any meds unless I absolutely have to. It took a few hours for the meds to start working. It made me drowsy which is not unusual when you take any medications. For me it's always good to take the medication, wait and rest for it to start working. It worked okay for the most part, my nose stopped running and I stopped sneezing. One of the side effects is that I wake up with a dry nose and it's just a tad stuffed, but goes away. I took one pill on Saturday afternoon, by Sunday afternoon the medication should have started to wane, and I wasn't planning on taking another one. The side effect was that I started getting stabbing headaches that lasted for almost 24 hours. I'm not sure if it was the Zyrtec. So on Wednesday my allergies came back and I took another pill that afternoon. After 24 hours again, the next day, I started getting the stabbing headaches. Coincidence or side effect? I'm not sure if I want to tempt fate again, but I think....maybe I do it one more time, just to be sure. But not yet...I think I'll hold off...these headaches really hurt. F 47 2 days
1X D
4/15/2011
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 2  allergies some drowsiness, dry eyes. Upon withdrawal the feeling of itching and pain in the eyes developed and has persisted for several days so far. It feels like there is something in the eyes yet eye exam shows nothing. Not sure it is from zyrtec withdrawal but there seems to be no other explination. would not use it again for allergies. M 60
10 1X D
4/15/2011
 2  seasonal/occupational allergies i started out taking one zyrtec/day. at first they made me incredibly sleepy and i took afternoon naps if i could. also, i'd get a bad headache that would pound with my heart beat, have nightmares, and not be able to sleep soundly at all. slowly, even after i decreased the dose from 1 to a 1/2 of a pill per day (to avoid the exhaustion/drowsiness and general "weird" feeling), i noticed myself feeling more disassociative and depressed. i started seriously contemplating suicide, and the detached thoughts about wanting to die increased with every day i took it, as though it was building up in my system like a poisonous depression in a pill. yeah, my allergies were completely gone, which was relieving, but what's the use of living without allergies if all you can do is cry, feel generally irritated with life, and want to die after taking an allergy pill? weird to feel so indifferent, almost enthusiastic, about the idea of dying...never really felt that until i started taking zyrtec...the 1/4 of a pill dosage seems to be most manageable for me, but even at that dose, i can't handle it for long periods of time...every few days i have to stop taking it to avoid the highly negative side effects, as the medicine builds up in my system. also, crazy heart beat (even at 1/4 pill) if i'm doing anything that involves physical exertion. thankfully, for me, 1/4 of a pill somehow keeps my asthma, itchy eyes, sneezing, etc at bay with way less exaggerated side-effects than a 1/2 or a whole pill seem to cause. F 31 20 days
1X D
4/13/2011
 1  Seasonal allergies Severe lethargy, depression, a numb feeling inside and out. No emotion, inability to make decisions, a feeling of despair, foggy brain, constipation, confusion. Works for my allergies but not worth the horrible feeling that comes with it. F 52 7 days
10 MG 1X D
4/12/2011
 4  hives in the beginning, extreme drowziness, but the more I take it, the less fatigued I feel. I take it for hives, which I've had lately for over two months, cause unknown. I also take Singulair in the morning. I have noticed I am more hungry than usual, and do experience bizarre dreams. I don't think this drug causes aggitation. The aggitation is from not knowing what causes the hives, which have come and gone for the past 6 years. I think it may be hormonal. They appear in the evening and are gone by noon. Also includes some episodes of angioedema. More hot flashes than usual, but again, can't blame this on the zyrtec. F 61 3 weeks
30 mg 1X D
4/10/2011
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 3  Nasal Allergies none Keeps me from having a full blowner but my nose won't stop running. M 48 2 years
1X D
4/9/2011
 1  allergies My 3 year old daughter had nightmares, stopped napping even though she hadn't slept well at night, and tantrums as soon as she started the Target-brand generic of Zyrtec. She is normally a very even-keeled child, and I can't believe it took me 4 days to figure this one out! Will never give her this again... F 3 4 days
2.5 mL 1X D
4/9/2011
 3  runny nose, post nasal drip I expereinced slow, steady weight gain with a very large appetite. Tried to cut back on portions and couldn't lose (and I'm a registered dietitian!). My dog died , so after a few weeks I decided to try and stop taking Zyrtec. All of a sudden I was able to lose weight and I didn't have such a voracious appetite. It's been great and I would never take it again, unless my allergies were very bad and even then only for a few days. Next pet will have to be hypoallergenic, because I am not taking it on a regular basis ever again. Feels too good to be thinner again! F 36 2 years
1 pill/day 1X D
4/8/2011
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 1  2yr old taking for seasonal allergy Was going to give my daughter Zyrtec tonight. Her doctor prescribed this for seasonal allergies. She was taking Claritin before given this and from what I am reading ,the Claritin was giving my daughter the same side effects: Mood changes, not eating, not sleeping, just not my same baby! She was very beside herself. After reading these reviews I will NOT be giving Zyrtec to her either. It is awful that young children have to go through such side effects for something that is supposed to be helpful. F 2 1 days
1 MG 1X D
4/8/2011
 1  My 10 yr old son, for allergies My son is on a number of meds to start with, including Prozac and Lithium, however, it is far too coincidental that 10 days into using Zyrtec daily, he went from stable and happy, to a wreck...depressed, anxious, panicky, angry, tantrums, nightmares, stomachaches...and the last two days, hearing voices. I remembered this time last year when Clartitin also had a bad effect in him, so my first thought this morning was to search...and found this forum (thank goodness!) No more Zyrtec for him! I think some kids are just especially vulnerable to chemically triggered mood changes, but a kid with a mood disorder already diagnosed might be even more at risk. I would urge all parents to monitor their kids behavior if starting this med, previous disorder or not. M 10 10 days
10 mg 1X D
4/7/2011
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