Compositions comprising nonsteroidal anti - inflammatory drugs

A process for producing a pharmaceutical composition comprising a nonsteroidal anti-inflammatory drug wherein the pharmaceutical composition is an aqueous mucoadhesive, said process comprising:

• preparing an aqueous solution containing pharmaceutically acceptable salts, adding to said aqueous solution at room temperature and under agitation:
• at least one nonsteroidal anti-inflammatory drug, in an amount resulting in a concentration between 0.05% and 10% by weight of said pharmaceutical composition;
• a natural polymer belonging to the xyloglucan family in an amount resulting in a concentration between 0.05% and 10.0% by weight of said pharmaceutical composition;
• glycerol in an amount resulting in a concentration between 5.0% and 70.0% by weight of said pharmaceutical composition;
• and
• pharmaceutically acceptable excipients.