Oral Sustained Release Dosage Form: an Opportunity to Prolong the Release of Drug

The oral route of drug delivery is typically considered the preferred and most patient-convenient means of drug administration. The advances in the formulation technology of modified release dosage form with sustained release oral dosage form has been widely accepted approach as compared to conventional immediate release formulations of the same drug, over which it provides a prolong release of the drug over extended period of time there by giving the better patient compliance and enhanced bioavailability and resulting blood concentration-time profiles of drugs that otherwise suffer from few limitations. Sustain release system are considered a wiser approach for the drugs with short half-lives and which require repeated dosing, they are easy to formulate and are irrespective of absorption process from gastrointestinal tract after oral administration. Here this article concentrates on the preparation, factors influencing, design and formulation review of oral sustained release preparation.