DIPHENHIST (DIPHENHYDRAMINE HCL) CAPSULE [RUGBY LABORATORIES INC.] Home DIPHENHIST (DIPHENHYDRAMINE HCL) CAPSULE [RUGBY LABORATORIES INC.] DIPHENHIST (DIPHENHYDRAMINE HCL) CAPSULE [RUGBY LABORATORIES INC.] PDF | XML NDC 0536-3594-01 Set ID 25f94311-b6e8-4f75-99d2-6419337767e1 Generic Name Product Class Product Number Application Number PART341 Related Drugs Search DailyMed Drugs