The kind of Benadryl that can be given to dogs is plain, regular-strength Benadryl that contains only diphenhydramine as the active ingredient. It should not have any additional ingredients such as decongestants, acetaminophen, alcohol, or other additives that could be harmful to dogs. Both Benadryl tablets, capsules, and liquid forms are commonly used, with liquid often preferred for small dogs due to easier dosing customization. Topical Benadryl sprays or ointments are also available for skin-related allergies but should be used only if all ingredients are safe for dogs.
The typical dosage guideline is about 1 mg of diphenhydramine (Benadryl) per pound of the dog's body weight, given two to three times a day, but this should always be confirmed with a veterinarian to account for any specific health issues or other medications your dog may be receiving.
