SOLUBLE SALTS OF IBUPROFEN AND NAPROXEN WITH N-(2-HYDROXYETHYL) PYRROLIDINE AND PHARMACEUTIC COMPOSITIONS CONTAINING SAID SALTS

摘要

The salts, in the crystalline form, of ibuprofen and naproxen with N-(2-hydroxyethyl) pyrrolidine are prepared by dissolving ibuprofen and naproxen respectively in a suitable organic solvent, by adding N-(2-hydroxyethyl) pyrrolidine, by letting the compounds react, by removing the solvent and by crystallizing the obtained salt from a solution in an apolar and aprotic solvent. Said salts have a high solubility in water and are used for preparing pharmaceutic compositions for oral and other administrations.