DIPHENHYDRAMINE HCL (ANTIHISTAMINE) TABLET [SERGEANT'S PET CARE PRODUCTS, INC.] Home DIPHENHYDRAMINE HCL (ANTIHISTAMINE) TABLET [SERGEANT'S PET CARE PRODUCTS, INC.] DIPHENHYDRAMINE HCL (ANTIHISTAMINE) TABLET [SERGEANT'S PET CARE PRODUCTS, INC.] PDF | XML NDC 21091-917-01 Set ID b0613894-0db1-47ff-967e-a6cf03120b76 Generic Name Product Class Product Number Application Number Related Drugs Search DailyMed Drugs