Active Ingredient(s): Cetirizine
FDA Approved: * December 8, 1995
Pharm Company: * PFIZER
Category: Allergies, Cough & Cold

* This drug may consist of multiple approval dates, manufacturers, or distributors. If applicable, they would be listed below under "NDC Database Records".

Zyrtec Overview

Cetirizine, sold under the brand name Zyrtec among others, is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives).[5] It is taken by mouth.[6] Effects generally begin within an hour and last for about a day.[6] The degree of benefit is similar to other antihistamines such as diphenhydramine.[6] Common side effects include sleepiness, dry mouth, headache, and abdominal p...

Read more Zyrtec Details
Details May Include Instructions, Side Effects, Interactions, Etc. Drug monograph is from Wikipedia. All text is available under the terms of the GFDL (GNU Free Documentation License). Source: en.wikipedia.org/wiki/Cetirizine

Recent Zyrtec Forums: RSS Feed

inr reading and zyrtec

will zyrtec alter my pro-time? I take Coumadin because I have a St. Judes mechanical aortic valve. ## Over the course of several months my Pro-time INR readings have been satisfactory---requirng no change in Coumadin dosage. "Suddenly" the readings became erratic-- to the extent that instead of monthly pro- times--I've had to have the INR checked weekly. The only "new" drug I've been taking is Zyrtec. I asked my PCP if Zyrtec can influence the INR. She replied-- "It's possible." So I cut out the Zyrtec--even though it's been very helpful. After 2-3 weekly checks --sans Zyrtec----things are okay. I wonder if any of your respondents have had similar experience. Thank you ## Yes, it is possible for Zyrtec to cause that as a side effect, along with di...

Tradaxin cetirizina

Small white pill from Mexico, was told it is like Zyrtec here ## Tradaxin Cetirizina 10 mg is what I got in Mexaco. Is it a pill for allergys? If not, just what is it for? ## It is just for allergy antihistamine it can cause drowsiness best to take at night time ## Yes, this is the same active ingredient as what is in Zyrtec, the antihistamine Cetirizine, which is most commonly used to treat allergy symptoms. Along with the drowsiness already mentioned, it may also cause dry mouth, dizziness and urinary retention as side effects. You can learn more Cetirizine details here. Are there any questions or comments? ## How many do i take of this alleegy med from mexico it does. Not say and when?? ## How many can I take within a 12-hour time frame?

Pfizer 551

Oblong white pill, what is it? ## PFIZER 551 is a 10 mg Zyrtec coated tablet manufactured by Pfizer. ## Just found 5 pills matching this description in my new bottle of Xyzal 24 hr. What's up with that? I phoned the 800 number on the bottle. A supervisor is to call me back. ## That's interesting Moof, please share what the supervisor says! What I also find interesting is that the person "Troy" who posted that it's a Zyrtec (Cetirizine) back in the day is referring to an OTC allergy medication. And you said you found the mystery tablet inside a bottle of Xyzal 24 hr which is also an allergy medication with a similar sounding ingredient (Levocetirizine). These OTC meds can change in appearance, so please let me know what they say. ## Please disregard my message earlier...

Bad Zyrtec Side Effects

When I took Zyrtec I had severe side effects. I was like a zombie in a dream state most of the time. I had severe memory problems. There is several months and I don't remember things at all! The parts I remembered and found out about, and I did things totally against my character! Things that make me sick! I think Zyrtec can be a very dangerous drug! Please has anyone else had similar side effects? ## i take zyrtec everyday since i was in 8th grade and im a junior in highschool now and ive never had a bad side effect ## Yes! My ear-nose-throat doctor told me to try it. Drixoral works the best for allergies, but is almost impossible to get due to the manufacturer not producing it for some suspicious reason. My dr. said Drixoral crosses the blood-brain barrier and affects my brain che...

Cr500 How Long Should You Take It

i got cr500 take 2 aday how long do i do this for ## Lately I have been waking up with a snuffy nose and mucus in my throat. Is this allergy? I have been taking Zyrtec. How long should I been taking this medicine? Should I see a allergy doctor? ## Risky, the CR 500 tablet with a logo contains 500mgs of Ciprofloxacin, an antibiotic that is used to treat various types of infections. You should take it for whatever length of time your doctor has instructed you to do so, because the dosing and duration can vary, depending on the type and severity of the infection being treated. Side effects may include: nausea, dizziness, non-allergic skin rash and diarrhea. Learn more: Marie, have you consulted your doctor? There are several reasons this could be occurring and an allergy is just one of t...

Is Zyrtec Cetirizine Hydrochloride

I have got hey fever and started these tablets today. how long will it take for them to work. ## I hope you look up Zyrtec withdrawal Quitting Zyrtec and itching before you decide to take this. ## Yes, it contains Cetirizine, and it is most commonly used to treat allergies. The NIH warns that it may cause, side effects, such as nausea, headache, dry mouth, and drowsiness. You should start to experience some relief within 15 to 20 minutes of taking it, but it may take about 4 to 6 weeks for it to reach its full level of efficacy in your body. Itchy Scratchy, I am sorry about the problem you had from stopping. It is usually best to taper off of most medications to prevent these rebound effects. Have you tried any other allergy medications? There are others you can try, if you aren't c...


generic zyrtec ## Did you mean Cetirizine? That is the generic for Zyrtec. The FDA lists as being used to treat allergies, and it's typical side effects as possibly including nausea, dizziness, headache, mood changes, weight changes, and dry mouth.

Zyrtec and Allegra

Is it harmful to take Allegra in the morning and Zyrtec at night. I have tried this for three days and am finally getting relief from my severe allergy symptoms ## Is it harmful to take Allegra in the morning and Zyrtec at night. ## No, that's what my ENT had me do. ## I was taking allegra d in the morning (12 hr version) and allegra 60mg at night. worked great. my insurance co stopped covering it for me, so i went to zyrtec D 12 hr and a half pill of plain zyrtec at night....generic version. worked. BUT years later i have having other issues. zyrtec (or cetirizine) doesnt warn u of side effects. try to STOP taking any form of zyrtec, even after a short time...and you will ITCH like a mad person. read the posts on zyrtec withdrawal symptoms. I have sever dry eye, severe dry mouth, a...

i want to know about ``histamed-f``

round & red capsule ## The U.S. equivelent is Dexchlorpheneramine, here is the link to the drug monograph for more information: ## I want to khnow the side effects of hestiamed_f ## I would like to know what histamed capsules are prescribed for. And what does it helps? ## histamed-f ( anti-allergic,anti-inflammatory and anti-pruritic is not available in kuwait , for that i need to have the alternative to histamed-f ; respectfully. mihel abboud ## what will happen if i drink alcohol while taking histamed f,zaditen and actifed thank you ## I want to know if the baby under one year can take histamed f syrup ## Zyrtec works like histamine u may check it out in web ## what is the maximum dose of Histamed F that can be given to a child 2 years old??? ## Hi I'm 4 month pregnant can I u...

Hydroxy 25mg with Zyrtec

I'm prescribed Hydroxy three times a day but I can only take it at night because it makes me sleepy. Is it fine if I take Zyrtec with it in the morning instead of all day long? ## What medication are you referring to? Do you mean Hydroxyzine? The FDA lists its typical side effects as possibly including nausea, dizziness, headache, and dry mouth. Are you on any other medications?


Possible Dosages for this and Related Drugs:

  • Capsule: 10mg, 5mg
  • Injection: 10mg/ml
  • Solution: 10mg/ml (10mg/ml), 5mg/5ml
  • Solution/drops: 0.24%
  • Syrup: 1mg/ml, 5mg/5ml
  • Tablet: 10mg, 5mg
  • Tablet, Chewable: 10mg, 5mg
  • Tablet, Orally Disintegrating: 10mg
Note: Above list includes dosages for all drugs with the same combination of active ingredients.

NDC Database Records for Zyrtec: (5 results)

Sorted by National Drug Code
  • 50580-726 Zyrtec 10 mg Oral Tablet by Mcneil Consumer Healthcare Division of Mcneil-ppc, Inc.
  • 50580-778 Zyrtec 10 mg/1 Oral Tablet, Orally Disintegrating by Mcneil Consumer Healthcare Div. Mcneil-ppc, Inc
  • 50580-779 Zyrtec 10 mg Oral Capsule by Mcneil Consumer Healthcare Div Mcneil-ppc, Inc
  • 54868-5879 Zyrtec-d (Cetirizine Dihydrochloride 5 mg / Pseudoephedrine Hydrochloride 120 mg) 12 Hr Extended Release Tablet by Physicians Total Care, Inc.
  • 63629-2798 Zyrtec 10 mg Oral Tablet, Film Coated by Bryant Ranch Prepack

Other drugs which contain Cetirizine or a similar ingredient: (16 results)