Alkaline ophthalmic suspensions

Drug – bio-affecting and body treating compositions – Topical body preparation containing solid synthetic organic... – Ophthalmic preparation

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424427, 424428, 424489, 514912, 514913, 514914, A61K 3174, A61K 914, A61F 214

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active

053405722

ABSTRACT:
Topical ophthalmic medicament delivery system combining an aqueous ophthalmic gel suspension at a pH equal to or greater than 7.5 and an osmotic pressure of from 10 to about 400 mOsM containing a pharmaceutically effective amount of one or more ophthalmic medicaments of from about 0.05% to about 10% by weight, based on the total weight of the suspension, of a carboxyl-containing polymer prepared by polymerizing one or more carboxyl-containing monoethylenically unsaturated monomers and less then about 5% by weight of a cross-linking agent. The systems have a viscosity of from about 1,000 to about 30,000 centiposes prior to administration to the eye and remain a gel in the eye for a prolonged period of time allowing for the sustained release of one or medicaments such as amine containing antibiotics alone or in combination with cortiscosteroids.

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