Patent ID: 11878030
Assignee: ALLERGON S.A.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. An ophthalmic formulation comprising as active ingredients
cooperative hybrid complexes named L/H-HA characterized by high mucoadhesion and with a viscosity not exceeding 30 mPa, said cooperative hybrid complexes being obtainable by heating at 100-130° C. for 10-30 min a mixture of an aqueous solution containing low molecular weight hyaluronic acid (L-HA) or chondroitin (C), said C having an average molecular weight ranging from 1·104 to 1·105 Da and
hyaluronic acid (H-HA) having an average molecular weight at least 5 times higher than that of L-HA.