Ophthalmic compositions containing mucoadhesive...

A - Human Necessities – 61 – K

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A61K 31/715 (2006.01) A61K 9/08 (2006.01) A61P 27/04 (2006.01)

Patent

CA 2618871

Ophthalmic solutions containing arabinogalactans with a protective activity on the corneal epithelium, particularly suitable for use as artificial tears stimulating the recovery of corneal lesions and also particularly useful for contact lens users, containing from 1 % to 10% by weight of arabinogalactan in an aqueous solution and possible other excipients, among which tonicity- adjusting agents, pH correctors, buffers and preservatives, except for benzalkonium chloride. The compositions according to the invention have a virtually negligible viscosity, but are sufficiently mucoadhesive to assure a considerable permanence time in the area of application. Besides being well- tolerated, the afore-said compositions have considerable re-epithelisation capacity.

L'invention concerne des solutions ophtalmiques contenant des arabinogalactans à activité protectrice sur l'épithélium de la cornée, qui sont particulièrement appropriées à une utilisation, d'une part, en tant que larmes artificielles stimulant la guérison de lésions de la cornée et, d'autre part, avec des lentilles de contact. Ces solutions renferment entre 1 % et 10 % en poids d'arabinogalactan dans une solution aqueuse et d'autres excipients possibles, parmi lesquels se trouvent des agents d'ajustement de la tonicité, des correcteurs de pH, des tampons et des agents de préservation, à l'exception du chlorure de benzalkonium. Les compositions de ladite invention possèdent une viscosité virtuellement négligeable, mais elles adhèrent suffisamment aux muqueuses pour garantir un temps de permanence considérable dans la région d'application. En dehors du fait qu'elles sont bien tolérées, les compositions susmentionnées présentent une capacité de réépithélisation considérable.

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