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. Always double check the dosage before giving an over the counter medication. read more
According to many vets, you can give your dog Benadryl, but before you let your dog take Benadryl, make sure that you consult your dogs personnel vet so that you are certain your dog can take Benadryl. The amount of Benadryl your dog can take all depends on certain factors, but weight is the most important. The typical dose is 1mg/lb. read more
Although Benadryl is supposed to be used by humans, your vet can prescribe a dosage for your dog if they think it's necessary. It can be an effective medicine but if you think your dog may have any of the above conditions, seek your vet's advice before giving your dog Benadryl. read more