The aim of this study was to demonstrate that the asymmetric membrane capsule can be used to deliver a poorly water soluble drug with a pH sensitive solubility such as gliclazide. In order to obtain the desired delivery duration, the drug was solubilized with the use of a pH-controlling excipient. The capsule wall membrane was made by a phase inversion process, in which asymmetric membrane was formed on glass mold pins by dipping the mold pins into a coating solution containing a polymeric material followed by dipping into a quench solution. This study evaluates the influence of coating...

Microparticles are one of the key novel drug delivery systems has been widely used to precisely modulate release rate. Microparticles based polymeric systems fabricated using suitable carrier has been extensively explored as an effective matrix for controlled and sustained release delivery of many drugs. With the controlled release systems, the rate of drug release matches the rate of drug elimination, and therefore the drug concentration is within the therapeutic window for the majority of the 24-hr period.The aim of this study was to prepare Eudragit microspheres containing Tramadol HCl by...