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How much Benadryl can I give my dog? What are some side effects?
I have a question about my dog. How much Benadryl can I give him?
Benadryl dosage for dogs is usually based on their weight. The general guideline is 1 milligram per pound of body weight. So, if your dog weighs 20 pounds, you can give him 20 milligrams of Benadryl.