Pharmaceutical composition, containing diclofenac and 2-hydroxypropyl-beta-cyclodextrin.

摘要

A method of preparing an injectable pharmaceutical or veterinary composition which comprises either diclofenac or a salt thereof and 2-hydroxypropyl beta-cyclodextrin, or an inclusion complex of diclofenac or a salt thereof and 2-hydroxypropyl beta-cyclodextrin, includes the step of dissolving either the diclofenac or salt thereof and the 2-hydroxypropyl beta-cyclodextrin, or the inclusion complex, in water to form a solution, the water having been acidified to a pH such that the pH of the solution is from 6,0 to 8,5 inclusive, in the absence of a phosphate buffer. The composition so produced has good stability on storage.