Provided are bilayer pharmaceutical compositions containing core matrix of release rate controlling polymer and metformin hydrochloride and immediate release layer composition of sitagliptin phosphate monohydrate.

Controlled release compositions of oxcarbazepine are disclosed using non cellulosic excipients as a rate controlling agents and sucrose as a binder with methacrylic acid copolymer and sodium lauryl sulfate as release promoting agents wherin enhancement in the dissolution is acheived by keeping drug and release promo...