Official FDA 510k Clearance Certification Documentation for PPX K040445. This FDA 510 Clearance Certification Documentation and many more can be found on www.EmployeeDrugTestingAce.com within the Resource Library and Product Pages. Aka: www.EDTAce.com Propoxyphene (PPX) is a drug often prescribed to treat pain and is related structurally to methadone. Propoxyphene is generally taken orally and its effects peak in 1 - 2 hours. Overdose of propoxyphene effects the brain and can cause severe euphoria. Extended use of propoxyphene can cause respiratory depression, analgesia, stupor, and coma. Trade Names: Darvon, Darvon-N. Street Names: Pain Killer. Drug Testing Kit Product Codes: DOA-1124-011T, I-DOA-1137-011, I-DUE-1127-022, DCB-1115-011, DOA-184-271T, I-DOA-197-041, I-DUE-1107-141, I-DOA-1107-051, I-DOA-194-191, DOA-1127-041-019, DPP-102, DPP-114, DOA1124011T, IDOA1137011, IDUE1127022, DCB1115011, DOA184271T, IDOA197041, IDUE1107141, IDOA1107051, IDOA194191, DOA1127041019, DPP102, DPP114 Aka: www.Employee-Drug-Testing-Ace.com