Side effects of Benadryl in dogs "If you do suspect an overdose, you should call your veterinarian immediately and take in the packaging for medications that were administered," Price says.

It's okay to give your dog certain human drugs, like Benadryl ... as quick treatment of an overdose is important," Meindl says. Symptoms of ibuprofen poisoning in dogs What can I do to help ...

Taking too much Benadryl, however, can lead to an overdose. When severe, a Benadryl overdose may cause hallucinations, ...

(Mollett: Franklin County Sheriff’s Office; Screenshot: WBNS/YouTube) A 35-year-old man in Ohio allegedly gave a fatal overdose of Benadryl to a 3-year-old boy, according to authorities.