Propoxyphene (PPX) is a weak opioid analgesic (pain reliever) that can additionally be used as a local anesthetic and anti-tussive (cough suppressant). It is a drug test.
Extended use of propoxyphene can cause respiratory depression, analgesia, stupor, and coma. To check the level of Propoxyphene (PPX) in the blood.
Cut-off level of Propoxyphene (PPX) is 300 ng/mL.
