Is it normal for cats to drool after children's Benadryl?

Before giving your cat any medication, please consult your vet first! Only your vet will be able to tell you the correct dosage for your cat.

A cat drooling after giving Benadryl seems to be common. A cat will drool or foam at the mouth when eating something with an unpleasant taste, so it is likely that Benadryl does not taste pleasant to a cat.

If you are at all worried, take your cat to the vet immediately. It is very easy to overdose a cat on human medication, and if this is the case the cat will need emergency treatment.