Ophthalmic Compositions
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United States of America Patent
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Mar 26, 2010
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Nov 14, 2005
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Abstract
An aqueous ophthalmic composition comprises a carboxy-containing polyanionic polymer that has a viscosity in the range from about 300 cp to about 1500 cp outside the eye and a total concentration of cations of less than about 50 mM, wherein the viscosity of the composition does not increase when the composition comes into contact with surface ocular fluid.
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