Does parafon forte show up as a narcotic on urine screen?

Parafon Forte, which contains the muscle relaxant chlorzoxazone, is not classified as a narcotic and typically does not show up as a narcotic on standard urine drug screens. However, some comprehensive tests might detect it, depending on the specific substances being screened for. If you're subject to drug testing and are concerned about the results, it's best to disclose any medications you're taking to the testing authority.