Not unless you know the reason you're giving the human-only medicine to them is. If you're having to ask this question, then the obvious answer should be no.
You can give 0.5-1mg of benadryl per pound
Can I give Childrens Benadryl with Childrens Nyquil?
can diabetic take benadryl
No.
Cows give meat and dairy cows give milk.
No
Not a good idea.
Yes
I have to do weekly breathalyzer test will Benadryl make me test positive
No, this would be a very high dose. Call your veterinarian and ask how much Benadryl to give your dog.
What does your Vet say?
no.