#$%^&*AU2013200237A120130131.pdf#####CONTROLLED RELEASED PREPARATIONS OF OXCARBAZEPINE HAVING SIGMOIDAL RELEASE PROFILE Abstract Controlled-release preparations of oxcarbazepine and derivatives thereof for once-a-day administration are disclosed. The inventive compositions comprise solubility - and/or release enhancing agents to provide tailored drug release profiles, preferably sigmoidal release profiles. Methods of treatment comprising the inventive compositions are also disclosed.