How much benadryl can you give a dog for itching?

The typical dosage of Benadryl (diphenhydramine) for dogs is 1 mg per pound of body weight, given every 8 to 12 hours. However, it's crucial to consult with your veterinarian before administering any medication, as they can provide the appropriate dosage based on your dog's specific health needs and conditions. Always use the plain Benadryl formulation without added ingredients like acetaminophen, which can be harmful to dogs.