FIELD: pharmacology.
SUBSTANCE: invention provides a composition comprising i) an oligomeric lactic acid of formula (I) wherein n is an integer from 2 to 20, 2 to 19, or 2 to 18, and wherein the content of the oligomeric lactic acid which is a trimer, i.e, HL3, which coefficient n is 2, is approx. 10 to approx. 20 wt % of the oligomeric lactic acid total weight. The average molecular weight Mn of the oligomeric lactic acid is approx. 200 to approx. 500, and ii) a mucoadhesive agent. The oligomeric lactic acid content is 20 to 80 wt % and mucoadhesive agent content is from 10 to 65 wt %.
EFFECT: improved properties.
17 cl, 11 ex, 25 tbl, 9 dwg
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