What is wpi 338 pill?

The WPI 338 pill is a white, round tablet identified as Diphenhydramine Hydrochloride 25 mg, commonly used as an antihistamine to relieve symptoms of allergy, hay fever, and the common cold. It can also be used as a sleep aid due to its sedative properties. Diphenhydramine works by blocking the effects of histamine in the body, providing relief from itching, runny nose, and other allergy symptoms. Always consult a healthcare professional before use, especially for children or if you have underlying health conditions.