FIELD: medicine.
SUBSTANCE: present invention refers to a delivery system for pharmaceutical compositions, partially based on ionic interaction to regulate and facilitate release of therapeutic agents, and concerns a bioadhesive pharmaceutical composition in the form of the gel, not containing an oil phase, with prolonged controlled release, containing an ionic therapeutic agent and ionic polymer wherein polymer is ionised enough to release a therapeutic agent in a controlled way throughout a long period of time, and a composition does not require an emulsion system to be introduced.
EFFECT: composition provides controlled release of a therapeutic agent.
10 cl, 6 tbl, 1 ex
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