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
Benadryl produce a liquid form of the medicine, and the one specifically designed for children can also be given to dogs as it is alcohol free. If you decide to use the liquid form, do make sure you work out the correct dosage. read more
Why to Give a Dog Benadryl Benadryl is an antihistamine. It was designed to relieve allergic reactions in humans but it can be used to treat a number of symptoms dogs. read more