Watson 349 | Acetaminophen & hydrocodone Bitartrate | Vicodin Watson 349 (Acetaminophen/Hydrocodone). Hydrocodone is in a group of drugs called narcotic pain relievers. Acetaminophen is a less potent pain reliever that increases the effects of hydrocodone. The combination of hydrocodone and acetaminophen is used to relieve moderate to severe pain. Watson349.org~Site InfoWhoisTrace RouteRBL Check