PHENYLBUTAZONE POWDER [LETCO MEDICAL, LLC] Home PHENYLBUTAZONE POWDER [LETCO MEDICAL, LLC] PHENYLBUTAZONE POWDER [LETCO MEDICAL, LLC] PDF | XML NDC 62991-2160-2, 62991-2160-3, 62991-2160-4, 62991-2160-5, 62991-2160-7 Set ID 5eeb16db-1e20-4c7e-9745-2ac66afe030e Generic Name Product Class Product Number Application Number Related Drugs Search DailyMed Drugs