How Much Benadryl Can I Give My 65 Lb Elderly Dog?
Dosage of Benadryl for canines. As recommended by the Merck Veterinary Manual, a safe dosage is between 2-4 milligrams of medicine per kilogram of body weight, or between 0.93 and 1.8 milligrams per pound of body weight. Depending on your dog’s symptoms, this dosage can be given two to three times daily.