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US 10,293,047 B1Granted
Fluorescein and benoxinate compositions
AssigneeParagon Bioteck, Inc.
InventorsPatrick H. Witham, Sailaja Machiraju
Life of this patent
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Abstract
Compositions comprising a fluorescein component and benoxinate component and the corresponding uses of these compositions are described herein. These compositions have improved storage life and the fluorescein component and/or benoxinate component minimally degrade after 12 to 18 months of storage.
Claims30
A composition comprising:
- (a) a fluorescein component;
- and
- (b) a benoxinate component;
- wherein the composition comprises a total impurity of about 1.5% or less by weight, and wherein the total impurity comprises one or more impurities with relative retention times from about 0.10 to about 1.90 under HPLC Method A.
1 more element
Dependencies are inferred from the claim text.