Both benadryl and zyrtec are antihistamines but have significant differences between them including dosing, duration of action and side effects. However, for allergy suffers, many want to know exactly. In our latest question and answer, our pharmacist discusses how often you can dose zyrtec (cetirizine).
The pharmacist compares claritin (loratadine) and zyrtec (cetirizine) in regard to which one works better for treating allergy symptoms. Ashley asked can you take zyrtec if you have high blood pressure? There is no drug interaction between zyrtec (cetirizine) and aspirin.
Answer zyrtec (cetirizine) is a second generation antihistamine and is dosed once daily as it lasts for about 24 hours. The pharmacist discusses whether or not zyrtec (cetirizine) is safe in those with an enlarged prostate. Does zyrtec make you sleepy?