Process for the preparation of a pharmaceutical composition with antiinflammatory and analgesic activity for administration via a patch for external use, and composition thus obtained

摘要

Process for preparing a pharmaceutical composition with antiinflammatory and analgesic activity for administration via a patch for external use, its components including as active principle a salt of diclofenac, 2 - [(2,6-dichlorophenyl) amino] benzene-acetic acid, with a cyclic organic base chosen from hydroxyethylpyrrolidine or hydroxyethylpiperidine, wherein said active ingredient is added to a mixture of one or more such components as a solution in two solvents, namely water and propylene glycol in a ratio of 1: 1 parts by weight.