Famprofazone, sold under the brand names Gewodin and Gewolen, is a nonsteroidal anti-inflammatory agent (NSAID) of the pyrazolone series which is available over-the-counter in some countries such as Taiwan.[1][2][3] It has analgesic, anti-inflammatory, and antipyretic effects.[1][2] Famprofazone has been known to produce methamphetamine as an active metabolite, with 15–20% of an oral dose being converted to it.[4][5] As a result, famprofazone has occasionally been implicated in causing positives on drug tests for amphetamines.[3]

See also

References

  1. 1 2 Swiss Pharmaceutical Society (2000). Index Nominum 2000: International Drug Directory (Book with CD-ROM). Boca Raton: Medpharm Scientific Publishers. p. 1932. ISBN 3-88763-075-0.
  2. 1 2 Hall JA, Morton I (1999). Concise dictionary of pharmacological agents: properties and synonyms. Kluwer Academic. p. 342. ISBN 0-7514-0499-3.
  3. 1 2 Chan KH, Hsu MC, Tseng CY, Chu WL (2010). "Famprofazone use can be misinterpreted as methamphetamine abuse". Journal of Analytical Toxicology. 34 (6): 347–353. doi:10.1093/jat/34.6.347. PMID 20663288.
  4. ↑ Oh ES, Hong SK, Kang GI (March 1992). "Plasma and urinary concentrations of methamphetamine after oral administration of famprofazone to man". Xenobiotica; the Fate of Foreign Compounds in Biological Systems. 22 (3): 377–384. doi:10.3109/00498259209046649. PMID 1496827. The results provide further evidence that methamphetamine is a bona fide human metabolite of famprofazone and suggest that at least 20% dose may be broken down via the pathways leading to the formation of methamphetamine.
  5. ↑ Shin HS, Park BB, Choi SN, Oh JJ, Hong CP, Ryu H (1998). "Identification of new urinary metabolites of famprofazone in humans". Journal of Analytical Toxicology. 22 (1): 55–60. doi:10.1093/jat/22.1.55. PMID 9491970. The major metabolite, representing approximately 15% of the dose, was methamphetamine.
source: https://en.wikipedia.org/wiki/Famprofazone