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[New research on the significance of polymers in pharmaceutical formulations].

During these last few decades, a lot of work has been made in pharmaceutical area in order to control the drug delivery from various pharmaceutical dosage forms. The use of polymers in pharmaceutical technology have led to the development of the first drug delivery systems proposed in order to prolong or to delay the drug delivery, or to enhance drug release for drugs showing bioavailability shortcomings. The wide range of polymers available for pharmaceutical use, their low reactivity towards drugs and other formulation ingredients and their safe nature, have permitted a widespread use of polymers to improve manufacturing processes or for the formulation of pharmaceutical dosage forms for various administration routes. More over, the preparation of new polymeric materials by the synthesis of new polymers with unique properties or by the modification of available natural or synthetic polymers, offer to the formulator a wide range of applications in order to optimise the drug delivery for each specific case.