FOAM-FORMING LIQUID COMPOSITIONS CONTAINING ACTIVE AGENTS, AND METHODS FOR PREPARING AND DEVELOPING THEREOF Russian patent published in 2014 - IPC A61K9/12 A61K31/196 A61K31/7048 A61K31/4174 A61K47/06 A61K47/10 A61K47/44 A61P17/00 

FIELD: pharmacology.

SUBSTANCE: method involves preparing a liquid composition containing a pharmaceutical active ingredient, a mixture of solvents containing water, isopropanol in an amount of 5 wt % to 20 wt % and propylene glycol in an amount of 2 wt % to 25 wt %, and a phospholipid foaming agent in an amount of 2 wt % to 25 wt %, foaming the liquid composition mechanically with no propellant used, and measuring the foam volume and stability. That is followed by transforming the nature and/or changing the concentration of the pharmaceutically active ingredient and/or the phospholipid foaming agent and/or changing the concentration of one of the solvents to produce 250 ml of the liquid composition. The above liquid composition is expected to produce foam in the volume of 400 ml and with the stability so that 50% of an initial foam volume is observed so far after the 10-minute hold-up and measured by the standard SITA procedure. The invention also relates to a composition applicable for topical use and prepared by the method described above.

EFFECT: preparing the composition presented by the stable foam.

22 cl, 18 dwg, 1 tbl, 18 ex