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 21091-693-01, 21091-693-02 Set ID 71b77db2-c05a-4f78-9e77-deafb59a8b0a Generic Name Product Class Product Number Application Number Related Drugs Search DailyMed Drugs