Propoxyphene is a prescription drug used to controlled pain. It is also available on the illicit market. It is a mild narcotic analgesic found in various pharmaceutical preparations, usually as the hydrochloride. Propoxyphene is a narcotic analgesic structurally related to methadone, sold as Darvocet, Darvon, Dolene, Novrad. It is most often combined with aspirin, acetaminophen, caffeine or napsylate to treat mild to moderate pain.
The drug testing kits below yield a positive result when Propoxyphene in urine exceed 300 ng/mL. This is the suggested screening cut-off for positive specimens set by the Substance Abuse and Mental Health Services Administration (SAMHSA, USA).controlled substance available only on the illicit market.