The top three options of antihistamines for dogs are:
- Diphenhydramine (Benadryl)
- Cetirizine (Zyrtec)
- Loratadine (Claritin)
Which antihistamines are safe for dogs?
Benadryl (diphenhydramine), Zyrtec (cetirizine), and Claritin (loratadine) are commonly used antihistamines that relieve allergy symptoms or counteract allergic reactions. Antihistamines are usually safe but make some dogs drowsy and others hyperactive.
Which antihistamine is best for pet allergies?
Treating Dog Allergies
Your doctor might recommend: Antihistamines, which block the effects of a chemical that triggers dog allergy symptoms; they’re sold over the counter — like cetirizine (Zyrtec), diphenhydramine (Benadryl), fexofenadine (Allegra), and loratadine (Claritin) — or by prescription.
Is Benadryl or Zyrtec better for dogs?
A 50-pound dog would need 50mg, or two adult Benadryl. Benadryl may cause drowsiness. Zyrtec (cetirizine) or Claritin (loratadine) can be given once to twice daily. Dogs under 10 pounds should get no more than 5mg, or ½ of a tablet.
Can I give my dog antihistamine for itching?
Benadryl is a great medication for use in dogs with mild-to-moderate allergies. Benadryl is commonly used to treat itchiness in dogs caused by skin allergies, and it also reduces many of the other symptoms of allergies, including: Itching. Hives.