The short answer to this question is “yes.” Benadryl is safe for dogs. It is one of the few drugs that is recommended by veterinarians for over the counter use. It is reasonably safe but, as with any drug, it is a good idea to find out the dosage levels, the benefits and side effects before use.
What is Benadryl?
Benadryl is the trade name for the drug diphenhydramine. Diphenhydramine was discovered at the University of Cincinatti in 1943 and was the first antihistamine registered in the United States. Antihistamines are drugs which inhibit block histamine and are used in humans for treating colds, hay fever, insect bites and stings and hives.