Can dogs take allergy medicine?

Can dogs take allergy medicine?
Common antihistamines like Benadryl (diphenhydramine), Claritin (loratadine) and Zyrtec (cetirizine) relieve allergy symptoms and allergic reactions. These medications are usually safe for dogs, but they can cause drowsiness or hyperactivity. Tip: Make sure your OTC allergy medicine only contains an antihistamine.

Reference:
Which Over-The-Counter Medications Are Safe For Dogs?
Oct 15, 2018

Can dogs take allergy medicine?,frequently asked question,question and answer,answer,