What pill is LO54?

The pill imprinted with "LO54" is identified as Diphenhydramine Hydrochloride 25 mg, an over-the-counter antihistamine. It is commonly used to relieve symptoms of allergy, hay fever, and the common cold, such as runny nose, sneezing, and itching. Additionally, it can be used as a short-term treatment for insomnia due to its sedative properties. Always consult a healthcare professional before use to ensure it is appropriate for your situation.