Below are some of the dog-safe active ingredients you can find in Benadryl products. Be sure to stick to formulations containing these ingredients (remember, the active ingredients will be displayed clearly on the packaging). Diphenhydramine Diphenhydramine is most commonly used for treating allergies, anxiety, and motion sickness. read more
The standard dosage for oral Benadryl is 1 mg per pound of body weight, given 2-3 times a day. Most drug store diphenhydramine tablets are 25 mg, which is the size used for a 25 pound dog. read more
Have never had a vet recommend Benadryl, but I do know they will recommend Gravol. If you are talking about separation anxiety, training is best. read more