Concentrated solutions of corticosteroids and method of making them.

摘要

A solution of a corticosteroid comprising: at least about 2,5 % of the corticosteroid; from about 25 % to about 80 % of a surfactant; from about 0 to about 70 % ethanol; from about 0 to about 70 % propylene glycol; provided that the amount of ethanol or of propylene glycol or of the two together is at least about 15 %; an effective amount of an antimicrobial agent; and remainder water. Also, a method of preparing this solution comprising: mixing the surfactant and the corticosteroid with heating until the temperature is from about 5 to about 10 DEG C above the pour point of the surfactant; separately mixing the remaining ingredients with heating until the temperature is from about 5 to about 10 DEG C above the pour point of the surfactant; combining the two mixtures; and heating the combined mixtures at a temperature from about 5 to about 10 DEG C above the pour point of the surfactant with mixing until a solution is formed.