background microencapsulation is a useful method to prolong a drug release from dosage forms and to reduce its adverse effect (1) among various available methods. the microencapsulation of hydrophilic active ingredients requires the use of a polar dispersing phase such as a mineral oil. acetone/paraffin systems are conventionally used. objectives the current study aimed to investigate two diffe...

Oral dosage forms with adjustable drug release profiles were prepared using progesterone (PGR) as a poorly-soluble model drug. The made stack assemblies of functional modules. modules PGR-carrying HPMC films cut into wafer-like circular pieces. Two types used in the study; one exhibited comparatively fast and other slow release. vs. each type film utilized resulted from grade case. Drug loading...