DIPHENHYDRAMINE HCL CAPSULE [BLENHEIM PHARMACAL, INC.] Home DIPHENHYDRAMINE HCL CAPSULE [BLENHEIM PHARMACAL, INC.] DIPHENHYDRAMINE HCL CAPSULE [BLENHEIM PHARMACAL, INC.] PDF | XML NDC 10544-166-15 Set ID 117fead9-699d-57ae-e054-00144ff88e88 Generic Name Product Class Product Number Application Number PART341 Related Drugs Search DailyMed Drugs