Drug – bio-affecting and body treating compositions – Designated organic nonactive ingredient containing other... – Carbohydrate or lignin – or derivative
Patent
1994-05-11
1995-06-06
Fay, Zohreh
Drug, bio-affecting and body treating compositions
Designated organic nonactive ingredient containing other...
Carbohydrate or lignin, or derivative
514912, A61K 4700
Patent
active
054223768
ABSTRACT:
A viscoelastic composition for injection into a human eye comprised of about 2.0 to 2.5 percent of hydroxypropyl methylcellulose dissolved in a physiological salt solution, the composition, the composition having a viscosity from about 15,000 to about 40,000 centipoise and the hydroxypropyl methylcellulose having a molecular weight from about 220,000 to less than about 420,000 Daltons, the composition being free of debris or gels greater than 0.5 .mu.m. Also described is a process for preparing the clean, high molecular weight hydroxy propylmethyl cellulose composition.
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