If you turn to this old standby for relief when allergy symptoms hit, the FDA says one generic type was "imprinted" with the ...

Lawyers allege the company falsely stated medications such as Codral Day and Night, Sudafed PE and Benadryl PE relieve congestion.

Medically reviewed by Daniel Combs, MD Benadryl (diphenhydramine) is an over-the-counter (OTC) antihistamine commonly used to treat allergies that is also sometimes used as a sleep aid for insomnia.