ZYRTEC Reviews (CETIRIZINE HYDROCHLORIDE)Average Rating: 2.0 (1816 Ratings)Filter ResultsCompare ZYRTEC with similar:
Type: Over-the-counter Drug
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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.) Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 |
More on ZYRTEC: Reviews Summary | Drug Safety Information
| RATING | REASON | SIDE EFFECTS FOR ZYRTEC | COMMENTS | SEX | AGE | DURATION/ DOSAGE | DATE ADDED |
| 4 | allergies | allergy relief, intense nightmares, hallucinating in heat | For a person who has allergies so bad I can't get out of bed during the spring/fall/when someone mows the grass, Zyrtec was a great solution. I take it when I need it during the day, but I made the mistake of taking it before my outdoor college graduation and passed out in the middle of the ceremony, so Zyrtec + heat = a no-no. Also I take it when I get up, but not before I go to sleep. If I take it before bed, I have INTENSE disturbing nightmares involving graphic and detailed dismemberment and murders of small children and family friends, the likes of which I've never seen before. I wish I could take it at night, but other than that I love it. | F | 21 | 2 years | 6/26/2009 | 4 | Yr round allergies cat,dog,dust etc | Drowsiness. Possibly a cause of stomach cramps and loose bowels after missing a pill. Possibly a cause of my paranoia. Please email me if you've had similar symptoms. | I started Zyrtec 6 yrs ago when claritin and allegra wore off for me. Its amazing for my allergies. 5 yrs ago I was also on an antibiotic for acne and I stopped the antibio after 2 yrs because i thought it was the cause of my stomach cramps and loose bowels, which happens variably. Recently, two seperate stomach incidents have happened the day after missing a zyrtec pill the night before. I also have noticed an increase in my paranoid thinking. I am going to stop the pill to see if my stomach prob and paranoid thoughts decrease. | F | 21 | 6 years | 6/9/2008 | 3 | Allergies | Drowsiness, slight confusion. | My only real complaint was that it didn't work as well as other allergy medications, but the side effects weren't so bad when compared to other medications. | F | 21 | 4 months | 11/3/2009 | 3 | spring allergies | Take pill at night before bed. Does not make drowsy, but I do sleep longer once I go to bed. Sometimes I'm tired in mornings. Helps alleviate some symptoms. No other effects | F | 21 | 1 months 1X day | 4/30/2010 | 2 | Allergies | It helped with my allergies such as the drainage, the runny nose, the itchy eyes, but it made me extremely drowsy. So much so it worried my coworkers that something was wrong with me when I passed out in front of my computer. I even dozed off while standing. That amount of drowsiness can be dangerous and it didn't even show up until about a week after taking the Zyrtec. The day I stopped taking it, there was an immediate difference in how drowsy I felt. I even switched between taking it in the morning to taking it at night with no difference except that taking it at night made it really difficult for me to wake up in the morning. | Beware of extreme drowsiness | F | 21 | 10 days | 10/20/2009 | 2 | seasonal allergies, sinusitis | interrupted sleep, strange dreams, waking up exhausted, extreme fatigue all day with intermittent bouts of extreme hyperactivity and restlessness, inability to concentrate, irritability, extreme frustration for no reason, anger, mood swings, anxiety, depression, both insomnia and hypersomnia. | Although Zyrtec definitely helped my constantly runny/stuffy nose and other allergy problems, I would not recommend taking it. The side effects caused more problems than my allergies. I would definitely recommend taking something else, Zyrtec is not worth it. | F | 21 | 5 days | 6/15/2008 | 1 | Cat allergy | Extreme dizzy/spaced-out feeling, fatigued but unable to sleep, irritability, trouble focusing | I've taken Zyrtec occasionally over the past few years, but I recently got a kitten which has made my allergies act up, so I have taken Zyrtec everyday for the past 3 weeks. Throughout this time, I've felt OK, a little tired/spaced out, unable to stay asleep, but I attributed all of that to lack of sleep. However, I didn't take the med for about 3 days, and felt fine. Then, I started it up again, and ever since, I have had the terrible symptoms I described. I feel like my state of consciousness is totally altered. I'm completely spaced-out. You know feeling when you stand up to quickly after lying down? I'm experiencing that same feeling constantly for 3 days now. Yesterday I stopped taking the Zyrtec, and hopefully I will have my brain back. | F | 21 | 14 days | 6/18/2009 | 1 | Oral Allergy Syndrome | I'm a 21 year old female. The worst allergy medicine I've ever taken, next to Levocetirizine. Besides being sedated and anxious, I most recently have been waking up with hives, shortness of breath, swollen eyelids and top lip, itching and burning skin, and panic attacks. I discontinued this medicine after like 3 months of taking it almost daily, I was absolutely miserable. I will never take this crap again. I'm on day 2 of not taking it and I was starting to feel better. I took Claritin today stupidly thinking I'd feel better with it and I do not. I feel like pure sh*t, I'm probably gonna stay off antihistamines for a while, I don't know what to take anymore. | why do you cause me such grief you were amazing at first ): | F | 21 | 60 days 10 mg 1X day | 9/11/2020 | 1 | I have really bad allergies | Depersonalization, mood swings, tiredness, general feeling of being "out of it". | I suffer from severe allergies, especially in the spring when all the pollen comes out. I used to take regular Zyrtec a few years ago back when it was available as a prescription and I felt fine. It worked great for me. A few weeks ago I bought some Zyrtec-D and began taking it as directed. One tablet every 24 hours. Within a few days I started feeling moody and I snapped at people that I love over the stupid things. That combined with the tiredness made me think I was coming down with a cold but I never did. I kept taking it and within the last few days I have had severe depersonalization. I feel as though I am watching myself from within. Like I am living without actually living and experiencing life. I stopped taking it yesterday and the feelings have lessened but I can still feel the effects of taking Zyrtec. I would rather sneeze every day than suffer with the terrifying side effects of this drug. | M | 21 | 2 weeks 5 1X O | 5/23/2010 | 1 | a little bit of allergy problems | headaches extreme dizziness neck aches back pain fatigue tired angry anxious heart palpitations migraine lethargy. I take benadryl I never get the symptoms. whoever made this stuff needs to go shoot himself | M | 21 | 8 days 10mg | 12/22/2012 | 1 | Interstitial Cystitis | Night terrors are the worst - disturbing surreal nightmares and the inability to wake myself properly from these, resulting in freaky hallucinations whilst being semi-conscious. I started with milder nightmares and these have built up to full blown terrors. Hearing things, I.e. the doorbell ringing when it isn't. Inability to get my words out and pronouncing them wrong. Random feelings of depression. Tiredness and inability to wake up properly. Forgetting things and struggling to stay focused. So lucky that my boyfriend suggested that it could be because of the tablets, god knows what would've happened if I'd've kept taking them! Horrendous. Terrified of sleeping now due to nightmares. Stopping this drug right now!! | F | 21 | 1 months 10mg | 10/13/2013 | 1 | Worse allergy season than usual | I went to my allergist to get a script for something other than my shots as allergy season was worse in my area than past years. I noticed a big difference within a few days, that I could breathe better, but then I realized that I couldn't eat without constantly feeling like I was either going to throw up or pass out. I stopped using it after I started getting extremely upset and annoyed over the littlest things, and not being able to sleep fully at night. I felt disorientated if I wasn't sitting 100% still. | In my 21 years of taking medicine, I've never taken anything that has made me feel the way I did when I took this, that made me feel scared, or whether or not I could make it through the day. I'll deal with having to blow my nose more often than not. | M | 21 | 2 months | 10/28/2007 | 1 | seasonal allergies | Overly tired, WEIGHT GAIN, joint aches, I have become very spacey at normal everyday tasks! I am Extremely tired and I thought that most of these symptoms were caused by just a lack of sleep! Well after reading this site I was totally wrong!!!! I'm so glad to hear that other everyday people have similar problems! I have also had a lack of sex drive as well as extreme moodiness! I almost thought that I was pregnant! Thank goodness that I'm not because lord knows what that would have done to a fetus! But my only question is how long has it taken for these symptoms to go away!!!! | The whole thing has scared me really! I thought that I was losing my mind! Literally!!! I just kept thinking just get caught up on your sleep and you'll be back to your normal self but that's never happened! I took Zyrtec today and let me tell you that it will be my last because it has affected me so much that I am about to lose my job!!!!!!! | F | 21 | 2 months | 7/30/2007 | 1 | Allergies | mood changes, sleeplesness, stomach pain, diarrhea, headaches | This is the worst medication I have ever taken for allergies. At first I was very drowsy all day long. After about a week I had a lot of trouble sleeping. Sleep became almost non-existant and when I tried to sleep I would have bad stomach cramps twitching muscles in my legs. Next was the diarrhea and severe migrane headaches. I went off the pill but still had severe mood swings and sleeplessness for at least a month after I discontinued them. Believe me if you take this medication and even begin to have side effects, my best advice is to stop taking it right then and there. | F | 21 | 2.5 months | 6/22/2007 | 5 | severe allergies | dry mouth | Love it..without it I am miserable..runny nose, puffy and itchy eyes..miserable! | F | 22 | 2 years | 4/20/2005 | 5 | Allergies | I loveeeeeeeeeeeeeee this stuff. I can't belive people have side effects at all. But then again if you read above a lot of them are so called "parents" feed this stuff to kids under like 8. Stick to bendryl for the little ones. The less meds they take the better. WAKE UP! For everyone else over the age of 8ish and not a parent there are truly few side effects to it. If you get a little lightheaded that little label on the bottle tha says dizzy explains why. Take the stuff with food or go back to bendryl. Stay inside more and change your filters in your house. There are a lot of things that dont require medicie look into them before taking anything. | I only take it when i NEED it. AKA im about to totaly pass out bec i can't take it anymore. otherwie dont take it. let our body learn to deal! | F | 22 | 2 years | 3/29/2007 | 4 | Nose and Eye allergies to pets | Iam tired if i take this medication in the morning.. So i take it at night. Sometimes i think its making me feel a little depressed or irritable. I went off the med for about a month and started taking it again for my horrible eye allergies. I guess the benefits out weight the side effects | F | 22 | 4 months | 2/15/2007 | 4 | year round allergies | Made me fall asleep | I decided to take Zyrtec after i tired every other allergy medicine out there and none worked which wasn't too good for me living in the country and owning 4 dogs 3 cats 2 ducks a ferret and a rat (a small farm yes lol). I 'm taking the 24 hrs ones so i started taking my pill in the morning. Immediately i started to fell groggy and if i sat for too long i'd fall asleep which was weird for me because i find it extremely hard to sleep during the day. After a few days i started a strict schedule of waking up at 5-6am taking my pill and going back to sleep. I wake up a few hrs later feeling great and allergy free! If you are going to take Zyrtec make sure you have a definitely plan or else it will make you feel weird. Besides that i've had absolutely no problems. Make sure you figure out whats best for you though and not listen to all the scary things people say because every experience will be different. | F | 22 | 4 weeks 1X day | 5/30/2010 | 4 | seasonal allergies | significant drowsiness, persistent dry mouth, feeling "zoned out" and in a fog. Also seems like I lost my sense of smell and taste somewhat. | took this med during allergy season for several years. Even though it is advertised as a non-drowsy antihistamine, it makes me drowsy. It does work very well though, better than any other second generation anti-histamine in my opinion. I am going to try to start taking it at night and see if that helps. | M | 22 | 5 years | 4/4/2009 | 3 | allergy | insomnia x10, energy, motivation | I'm in college, recently they were cutting down a forest behind my house. I would sleep with the windows open with a fan sucking air into my room. allergies went through the roof. started taking ZYRTEC. First day I could not fall asleep at night, didnt know if this was drug related or another source. finally after laying in bed for 5 hours I was able to fall asleep. Second try. Today. cleared up my allergies but it is now 4:30am with 2 exams tomorrow and no matter what I try I cannot fall asleep. Im wide awake ready to run a marathon. P.S. im only running on 12 hours of sleep over 2days, I would think my body wants to get a good nights sleep. | M | 22 | 2 days | 9/21/2009 |