Benadryl (diphenhydramine) is the most popular antihistamine for humans and can be effective for dogs as well. Just be aware that Benadryl has sedative properties, so your dog could get very drowsy. Other safe antihistamines for dogs include Claritin (loratadine) and Zyrtec (cetirizine).
What can I give my dog for allergies at home?
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Can I give my dog anything over-the-counter for allergies?
Many dogs respond well to human over-the-counter allergy medicine that you can purchase at most drug stores. The most common antihistamine for dogs is diphenhydramine, brand name Benadryl.
How can I help my pet allergy without medication?
Some people with dog allergies may find that a saline (salt water) rinse daily to clear nasal passages of allergens can help. A “nasal lavage” can control symptoms such as congestion and postnasal drip.
What over-the-counter allergy medicine is best for dogs?
Diphenhydramine HCI (Benadryl) is the most commonly used. The same Benadryl you take can be given to your dog, at 1 milligram per pound.
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