| Type | Cough & Cold |
|---|---|
| Brand | DPH |
Check the listing for details. DPH Diphenhydramine. Condition: New. Listed at 31.75 USD. DPH Diphenhydramine Diphenhydramine (DPH) is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes/nose/throat, cough, runny nose, and sneezing.