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US 5,627,214 AGranted
Use of diamines in ophthalmic compositions
AssigneeAlcon Laboratories, Inc.
InventorsRolf Schafer, Ronald L. Schlitzer, Nissanke L. Dassanayake
Life of this patent
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Abstract
Certain alkenyl diamines, the use of same for disinfecting and cleaning contact lenses and preserving ophthalmic products, and associated ophthalmic compositions are described.
Claims4
A method of preserving an ophthalmic composition which comprises including in the composition an amount of a compound of the following formula effective to preserve the composition from microbial contamination:
- R--NH--(CH.sub.2).sub.n --NH.sub.2 (I)
- wherein:
- R is C.sub.6 to C.sub.18 saturated or unsaturated alkyl, alkylaryl or alkoxyaryl, and n is 2 to 16, or a pharmaceutically acceptable salt thereof;
- and a pharmaceutically acceptable vehicle therefor.
1 more element
Dependencies are inferred from the claim text.