Though a typical Benadryl pill is 25 mg, you should only give your dog 0.9-1.8 mg per pound of weight. Make sure that the Benadryl you're giving your dog only contains diphenhydramine. Benadryl is ...

When determining the dosage, give your dog 0.9-1.8 mg per pound of weight; a typical Benadryl capsule contains 25 mg. It is ...