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How much zyrtec can I take

A 59-year-old female asked:
Dr. John Chiu
Allergy and Immunology 58 years experience
Yes: Zyrtec (cetirizine) has a slight sedating effect for some people but the effect is likely minimal for most people. There is no interaction between the... Read More
A 22-year-old female asked:
Dr. Gary Steven
Pediatric Allergy and Asthma 31 years experience
Yes: Benadryl (diphenhydramine) is one of the best anti-itch antihistamines, and can be taken together with zyrtec and steroids. The only caution is that a... Read More
A 49-year-old member asked:
Dr. Andrew Murphy
Allergy and Immunology 30 years experience
Follow Directions: The directions for taking zyrtec (cetirizine) are on the bottle. One should not exceed these dosing recommendations.
A male asked:
Dr. Al Hegab
Dr. Al Hegabanswered
Allergy and Immunology 41 years experience
Depends: on the condition, some would take it for years, but if you need it for long, better run it by tour doctor, best wishes
A 33-year-old member asked:
Dr. Michael Zacharisen
Allergy and Immunology 34 years experience
Probably: Although the usual dose of zyrtec (cetirizine) for an adult is 10 mg daily, under the direction of a physician, some patients may need more. It would... Read More
A 36-year-old female asked:
Dr. Richard Zimon
Internal Medicine 60 years experience
Yes: you can Hope this is helpful Dr Z
A female asked:
Dr. Carey Check
A Verified Doctoranswered
Family Medicine 17 years experience
Wait: Medication can lose it's effectiveness past expiration date, but I would not expect it to not be effective at all; especially if only 18 months expire... Read More
A 37-year-old male asked:
Dr. Bahman Omrani
Pain Management 18 years experience
Zyrtec (cetirizine) : Zyrtec is a safe anti-histamine with a relatively good tract record in long term users. But note that all medications have side effects. However, some... Read More
A 49-year-old member asked:
Dr. Richard Wasserman
Allergy and Immunology 45 years experience
Zyrtec (cetirizine) use: Zyrtec (cetirizine) can be taken daily indefinitely, there are no long term side effects from accumulated drug.
A 46-year-old member asked:
Dr. John Chiu
Allergy and Immunology 58 years experience
Yes: It is safe if you need to take it twice daily. Do note that you may get drowsy from it.