Question: how much benadryl can you give a dog in 24 hours?
Answer: As a general guideline, the maximum dosage of Benadryl for dogs is 1mg for every 1 pound of the dog's body weight, given 2-3 times per day, about 8-12 hours apart. Many factors can change this general guideline, so you should always talk to your vet to determine the proper dosage for your dog.