Ophthalmic Solutions
First Claim
1. An aqueous ophthalmic solution comprising a viscosity enhancing amount of the combination of 0.05 to 0.4% w/v hyaluronic acid or a pharmaceutically acceptable salt thereof, and 0.25 to 4.0% w/v polyvinyl alcohol, wherein the solution has a viscosity of 20 to 150 centistoke and is buffered to a pH 5.0 to 8.5.
3 Assignments
0 Petitions
Accused Products
Abstract
Aqueous ophthalmic solutions containing a combination of hyaluronic acid or a pharmaceutically acceptable salt thereof, e.g. sodium hyaluronate, and polyvinyl alcohol are disclosed. These solutions have a synergistic effect on viscosity and provide a statistically significant improvement over the prior art formulations. The solutions are used as artificial tear for the treatment of dry eye syndrome and ocular discomfort and may be administered whenever the use of artificial tears is advisable. The solutions are also suitable for use as vehicle for ophthalmic drugs.
95 Citations
67 Claims
- 1. An aqueous ophthalmic solution comprising a viscosity enhancing amount of the combination of 0.05 to 0.4% w/v hyaluronic acid or a pharmaceutically acceptable salt thereof, and 0.25 to 4.0% w/v polyvinyl alcohol, wherein the solution has a viscosity of 20 to 150 centistoke and is buffered to a pH 5.0 to 8.5.
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64. An ophthalmic solution comprising the following ingredients in the amounts indicated:
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67. An aqueous ophthalmic solution comprising a viscosity enhancing amount of the combination of 0.05 to 0.3% w/v sodium hyaluronate, 0.25 to 3.0% w/v polyvinyl alcohol, about 0.05% w/v monobasic sodium phosphate, preservative, tonicity agent, demulcent, lubricant, one or more active agents, wherein the solution has a viscosity of 20 to 150 centistoke and is buffered to a pH 5.0 to 8.5, and the solution has less than 0.6% w/v the one or more ionic-tonicity agents.
Specification