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US 4,539,330 AGranted
Imidazolidinyl urea and derivatives thereof for use in opthalmic solutions
AssigneeKetchum & Co. Inc.
InventorsSeymour F. Trager, Victoria S. Chylinski
Life of this patent
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Abstract
Anti-bacterial properties are imparted to a broad spectrum of ophthalmically active compositions by the inclusion therein of a urea derivative.
Claims5
A process for imparting anti-microbial properties to an ophthalmic solution containing an opthalmically active ingredient comprising adding to said ophthalmic solution material an anti-bacterially effective amount of a urea derivative selected from the group consisting of imidazolidinyl urea and N-(hydroxymethyl)-N-(1, 3-dihydroxymethyl-2, 5-dioxy-4-imidazolidinyl)-N'-(hydroxymethyl)urea.
Dependencies are inferred from the claim text.