050163838Dec 30, 2004Jul 28, 2005Cima Labs Inc.Effervescent oral opiate dosage forms and methods of administering opiatesUS20060292219Aug 28, 2006Dec 28, 2006Cima Labs Inc.Making a tablet by combining a drug such as fentanyl with an effervescent agent used as penetration enhancer to influence the permeability of the medicament in the oral cavity; compressing to form tabletUS20070036853Sep 15, 2006