IN2013MU01240AIN1240MU2013AIN2013MU01240AIN 2013MU01240 AIN2013MU01240 AIN 2013MU01240AIN 1240MU2013 AIN1240MU2013 AIN 1240MU2013AIN 2013MU01240 AIN2013MU01240 AIN 2013MU01240A
Authority
IN
India
Prior art keywords
methylphenidate
salts
release
pharmaceutical compositions
relates
Prior art date
Application number
Inventor
Girish Kumar Jain
Rahul Sudhakar Dabre
Jitendrakumar Chordiya
Inderjeetsingh Huda
Original Assignee
Wockhardt Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wockhardt LtdfiledCriticalWockhardt Ltd
Priority to PCT/IB2014/060084priorityCriticalpatent/WO2014174388A1/en
Priority to IN1240MU2013prioritypatent/IN2013MU01240A/en
Publication of IN2013MU01240ApublicationCriticalpatent/IN2013MU01240A/en
The present invention relates to process for preparing modified release pharmaceutical compositions of methylphenidate or salts thereof. In particular, the present invention relates to a modified release pharmaceutical compositions comprising at least one immediate release and at least one extended release component of methylphenidate or salts thereof. The composition may provide extended and specific release of methylphenidate or salts thereof to achieve therapeutically effective plasma concentration over a period of 12 hours to treat attention deficit disorders when administered to a patient in need thereof.