Ophthalmic drug delivery with thermoreversible polyoxyalkylene gels adjustable for pH
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United States of America Patent
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Apr 5, 1994
Issued Date -
N/A
app pub date -
Sep 13, 1991
filing date -
May 1, 1990
priority date (Note) -
Expired
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Abstract
Aqueous gel drug delivery compositions and medical devices, useful for treating an eye condition, having hyperosmotic, iso-osmotic or hypo-osmotic characteristics in the gel state, are obtained by calculating the osmolality required in the liquid state to reach a desired osmotic force in the gelled state by assuming that a polyoxyalkylene block copolymer does not contribute to the osmolality in the gel state.
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