ZYRTEC Reviews (CETIRIZINE HYDROCHLORIDE)

Average Rating: 2.0 (1816 Ratings)

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 ANTIHISTAMINES

 Type: Over-the-counter Drug

  

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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RATING  REASONSIDE EFFECTS FOR ZYRTECCOMMENTSSEXAGEDURATION/
DOSAGE		DATE ADDED
 
 5  allergy no major side effect but i often drink beer when taking it and if i have beer or wine i get some of the strangest dreams they're always fun but wow there weird. stuff works great M 27 40 days
30mg 1X day		 9/28/2011
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 4  allergies no side effects except maybe a little unbalance/dizziness This drug, no matter what it says otherwise in other places, is ADDICTIVE. I have to take it year round as I am highly allergic to many things. If I miss even one pill I get a terrible headche and feel so incredibly nauseous... until I take the pill and it goes away. Every time. It is scary to think it is addictive, but it works so well on my allergies, I can't stop taking it. I've tried EVERYTHING for my severe allergies and asthma and this works the best...just be prepared for what happens when you stop taking it. F 27 5 years
 11/9/2005
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 4  Rash (esp. after taking shower) Dizziness, short term memory loss, depression (severe to mild, depends), loss of hair. Recently after using it for almost 4&1/2 years I sometimes have wiered pain chest. I had couple of panic attacks in the last 6-7 months. I started off with this drug around 4&1/2 years back. Intially I took 10mg per day and it worked really good. Atfer I took it for 3-4 months everyday, I thought that somehow its not good to get used to such drug as sometimes these drugs may cause dependency. So I asked my doctor how long should I take this drug. He said that this is a safe drug and I should take it as long as I have these allergic rashes. So I started taking whenever I had those rashes. I noticed that once I take 10 mg, I dont have rash for atleast 4-5 day , but after that rash comes again. I continued taking the drug for almost 2 years after that. Then I started noticing that I have low concentration, mild depression, I also used to forget thing I should nto otherwise forget. I was pretty much sure in my mind that this drug is the cause for the change in the quality of life I was having. Then I started taking half of 10 mg tablet (ie. 5 mg) every 4-5 days. By then I was taking the drug for almost 3& 1/2 years. M 27 4 years
 12/3/2005
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 4  Rash (esp. after taking shower) Dizziness, short term memory loss, depression (severe to mild, depends), loss of hair. Recently after using it for almost 4&1/2 years I sometimes have wiered pain chest. I had couple of panic attacks in the last 6-7 months. I go under depression even due to the things that I could tolerate very easily otherwise. I know the things but I can not perform well in the exams just because I can not remeber things well even though the subject matter is well understood. I get frustrated very easily. In last 6 months I had visited clinic twice for the panic attack. I have also started breathing problem recently. I cant walk faster. If I climb even 30-40 steps at a normal rate, I get short of breathe. All these problems I have told to atleast 3-4 doctors. Each of them has responded equivocally and dont seem to have the perspective other than prescribing what has been tought and paid to write. I have even asked many these doctors whether or not I should undergo allergy testing to know the reason I have rashes. None of them seem to be willing to write referral for that for god knows whatever reason. As they say it wont help much by doing allergy testing. As per them I need to have a constant watch over what I eat, dri M 27 4 years
 12/3/2005
 4  Rash (esp. after taking shower) Dizziness, short term memory loss, depression (severe to mild, depends), loss of hair. Recently after using it for almost 4&1/2 years I sometimes have wiered pain chest. I had couple of panic attacks in the last 6-7 months. It will be lot easier for the patient to do self watch, if he makes sure that he/ she is not allergic to the allergens (something that cause the allergy) tested in the allergy tests performed in the hospitals. If you get allergies due to the allergen that is tested in the allergy tests then you know whats the culprit. My request to all people taking this medicine is to keep a close watch at the chenges that you see for yourself, and LET YOUR DOCTOR KNOW ABOUT IT. ASK HIM TO TAKE STEPS TOWARDS KNOWING THE EXACT EFFECTS, SIDE EFFECTS OF THIS DRUG. ITS QUESTION OF HEALTHY LIFE. Thank you. M 27 4 years
 12/3/2005
 4  Seasonal Hay Fever Dry nose, nasal crusting, blood in nose, mild drowsiness This stuff works well on hay fever, maybe a little too well because I can only take half a pill and I'll be good for about 3 days. It does make me a little bit drowsy so I take it at night, sometimes I wake up and feel fine, other times I've felt a bit foggy but it wears off. It also dries up my nose because it's strong, I get a lot of crusting and blood due to the dryness. However these side effects are tolerable and better than having bad hay fever. M 27 3 months
2X W		 8/28/2015
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 3  Bug bite weakness, fatigue, depression, anger I took 1 10mg Zyrtec gelcap two days in a row to reduce the swelling of a baseball-sized bug bite on my leg. I took each dose before bed, and the swelling was greatly reduced by the morning. I was feeling more tired than usual during the day, but I was out of town for work and chalked it up to travel exhaustion. I took one again last night (two days after the second dose) and felt extremely combative with my boyfriend and had trouble falling asleep and staying asleep. This morning I still felt angry and was having lots of doom and gloom thoughts. The anger transitioned into depression and feeling physically like I had been run over by a steamroller. I wondered if I had caught the flu. I took a 2-hour nap and when I woke up, I could hardly move my body. Am feeling a bit better, although still a little off, almost 24 hours after the last dose. I'm disappointed because Benadryl tends to cause rapid heart beat and anxiety attacks for me, and I thought Zyrtec could be my go-to. F 27 3 days
10 MG 1X day		 8/15/2014
 3  Indoor & Outdoor Allergies Racing Heart, EXTREME fatigue. It made me start sleep like 20 hours a day for awhile. Then after about 2 months, it won't let me sleep and I'm itching. Haven't been taking anything else except Tylenol. And some days, it wouldn't even work, like I hadn't even taken it. Still taking it but wish I knew better. M 27 4 months
 9/3/2008
 3  Seasonal Allergies Constipation, pimples on face/chest It is weird that since I started taking Zyrtec that I noticed acne on my face and chest and have become constipated. It did not help all that great with my allergies...needless to say that I will not be taking anymore Zyrtec--it is definitely not recommended! F 27 10 days
 5/14/2009
 3  Allergies to Dust and Dust Mites Totally sleepy. Had a hard time getting up in the morning and took a two hour nap during the day. I never take naps during the day. Feel very drugged and exausted. F 27
6/14/2005
 3  Seasonal Allergies The drug worked great for me the first few days then I started getting dizzy and it raised my blood pressure. I was taking Zyrtec-D once daily. The Zyrtec-D helped me clear my sinuses and my ears. M 27 8 days
 6/26/2006
 3  Severe allergies:grass,mold,pollen+ Not sure if they are side effects but after reading this. Anxiety, some OCD tendencies, weight gain, tired, lazy, upset easily, "out of it"-stopped taking 1-2months ago and lost almost 25lbs w/o trying-have tried while on zyrtec and never lost weight It worked great for my allergies but after recently trying Respa A.R. samples from my doc to help with post nasal drip I switched off the zyrtec-if the comments on this page are correct it explains A LOT of ABNORMAL health issues and behavior I felt while on zyrtec F 27 4 years
 10/19/2007
 2  allergies I am supposed to start taking Zyrtec... I wasn't able to pick up my prescription yesterday and now have to wait to Monday. I was curious about this drug and found this website. After reading about all these horrible experiences I must admit I am terrified to start taking this. I have allergies and eczema, no other medications have worked for me and zyrtec is my last option. Is it worth it? Will I experience all these terrible things? F 27
3/31/2007
 2  sneezing, itchy eyes, nose depression This is the first time I had allergies, and (looking back) was quite naive about treating it. I just went to a drugstore, picked up some zyrtec, and started taking one a day. Shortly after I became severely depressed. I have never experienced depression before, so I didn't even know what was happening to me. I thought I was stressed out or eating bad or tired or something, but then my wife said I may be having depression from the zyrtec. I stopped taking it, and immediately (the next day) began feeling a little better. I am improving day by day, instead of crashing day by day. This drug came close to really messing up my life. M 27 1 months
 4/13/2008
 2  seasonal allergies Naseau,tremors,hot sweats,rapid heart beat, my body went numb, head ache. I did fine on it in the spring when I started it up again come fall I had side effects...I will never take this stuff again due to the horrible way it made me feel. F 27 1 weeks
10 1X day		 9/30/2011
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 2  Allergic rhinitis The first day I took Zyrtec, I did not feel any effects, good or bad. The second day, I woke up without a sore throat, but I could barely move. I slept the day away and had muscle and joint pain, similar to the flu. I would not recommend this to anyone. F 27 2 days
10 mg		 4/20/2013
 2  Seasonal allergies Vivid, strange dreams, severe stomach doscomfort, excessive gas. I started taking zyrtec, well generic zyrtec about 10 days ago, after about two days i was having very strange dreams, unlike my normal ones. About 6 days after starting it i was experienceng severe stomach discomfort, no vomitting or dhiarrea, just a sour feeling, along with excessive gas. I didnt really put it all together until i stumbled upon this page, and it was a great help. I started thinking there was something wrong to me, but now it is clear that zyrtec is to blame M 27 10 days
10mg 1X day		 4/18/2010
 2  Seasonal Allergies Extreme fatigue/drowsiness, dry mouth I have taken Claritin for years and only decided this week to switch to Zyrtec. I decided to change after seeing several Zyrtec commercials that promised that Zyrtec works two hours faster than Claritin. The only side effect mentioned was drowsiness and I figured I could handle feeling a little sleepy if it meant that I could get through my first 2 hours of work without sneezing and blowing my nose non-stop. Day 1: By the time I arrived at work the Zyrtec had fully kicked in and I had no allergy symptoms. However I went through the day feeling like I was in a fog. I was yawning non-stop and struggling to stay focused. I managed to stay awake until about 10 pm and was knocked out until about 8 this morning. (Normally I sleep 7 hours max.) Day 2: Today, I took the Zyrtec at about 8:30 a.m., and once again my allergy symptoms dissapeared within the hour. Nevertheless by 12 o'clock I was back in bed and didn't wake up for 4 hours. The 3.5 hours that I spent awake were very ta F 27 2 days
 5/3/2008
 1  My son was taking it for allergies Severe temper tantrums (multiple times per day), head banging, sleeplessness. My pediatrician recommended Zyrtec for my 2 1/2 year old's allergy problems. Before he started taking it, the only real problem we had was his sleeping. He was getting maybe 5 hours/night because of his allergies. After he was on it for a week or so, he became violently aggressive. We had not had too much of a problem with hitting or kicking before this. He also began banging his head during his tantrums and wound up with several bruises. Anything could, and would, set him off. He also stopped napping, which made him even more tired and irritable. I just stopped giving it to him, and hopefully we will see a change. F 27 7 days
 6/8/2009
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 1  allergies complete fog and depression. i have been diagnosed as bi-polar but am not currently medicated for it. i am fine (not manic or depressive) if i keep my system clean. (meaning without drugs or alcohol of any kind). i started taking zyrtec two weeks ago and have non-stop crying fits, lethargy, thoughts of suicide and deep depression. i tried not taking it for a few days and realized my head was clear, (my sinuses weren't) and my mood was back to normal. i could function again and the crying stopped. I don't think it effects everyone this way. But I think if you have some sort of chemical imbalance to begin with, it sets off the depression. I would NOT recommend this medicine. F 27 14 days
 10/3/2008

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