A unit dosage form, such as a capsule or the like, for delivering a skeletal muscle relaxant, such as cyclobenzaprine hydrochloride, into the body in an extended or sustained release fashion comprising one or more populations of drug-containing particles (beads, pellets, granules, etc.) is disclosed....http://www.google.com.au/patents/US7544372?utm_source=gb-gplus-sharePatent US7544372 - Modified release dosage forms of skeletal muscle relaxants
