Benadryl is the brand name for the antihistamine ... The maximum daily dose should not exceed 300 mg. “If patients are using their acute medications and they help some, but they’re not able ...

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 ...