Brand-name propoxyphene hydrochloride (sold under the name Darvon) is manufactured by Xanodyne Pharmaceuticals, Inc. Generic propoxyphene hydrochloride is made by several manufacturers.
Propoxyphene hydrochloride capsules are available in one strength -- propoxyphene hydrochloride 65-mg capsules. At one point, a 32-mg capsule was available; however, this particular strength is no longer available.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed June 7, 2010.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 8th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2008.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed June 7, 2010.
Food and Drug Administration, Center for Drug Evaluation and Research. Propoxyphene: Withdrawal -- Risk of Cardiac Toxicity (11/19/2010). FDA Web site. Available at: http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm234389.htm. November 19, 2010.
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