Antihistamine FAQ

How much Benadryl can I give my dog?

Medically reviewed by Drugs.com. Last updated on Feb 4, 2025.

Benadryl dosage for dogs - I've heard that you can give benadryl to a dog, so how much should I give to my dog with allergies - weighs around 25 lbs.

Zyrtec vs Claritin: Which is more effective for allergies?

Medically reviewed by Drugs.com. Last updated on Sep 11, 2024.

Zyrtec and Claritin are both antihistamines, but which one is more effective for conditions such as allergic rhinitis or postnasal drip?

What causes a rash that moves to different parts of the body?

Medically reviewed by Carmen Pope, BPharm. Last updated on Oct 4, 2023.

Which antihistamines are safe for dogs?

Medically reviewed by Sally Chao, MD. Last updated on Sep 27, 2024.

Allegra vs Claritin: Which is more effective for allergies?

Medically reviewed by Drugs.com. Last updated on Sep 12, 2024.

Both Allegra and Claritin are antihistamines but which one is more effective or has more side effects?

Is it OK to take antihistamines every day?

Medically reviewed by Melisa Puckey, BPharm. Last updated on Aug 16, 2024.

How long do antihistamines take to work?

Medically reviewed by Sally Chao, MD. Last updated on Sep 23, 2024.

Which antihistamines make you drowsy?

Medically reviewed by Sally Chao, MD. Last updated on Sep 23, 2024.

Does Zyrtec cause weight gain?

Medically reviewed by Leigh Ann Anderson, PharmD. Last updated on Sep 18, 2024.

Can you take antihistamines when pregnant?

Medically reviewed by Sally Chao, MD. Last updated on Sep 23, 2024.