Low salt forms of polyallylamine
AssigneeGelTex Pharmaceutical, Inc.
InventorsJohn S. Petersen, Steven K. Burke, Stephen Randall Holmes-Farley
Life of this patent
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Abstract
Disclosed is a pharmaceutical composition comprising a stable polyallylamine hydrochloride polymer in which between about 4% to about 12% by weight of the polymer is a chloride anion and a pharmaceutically acceptable carrier or diluent.
Claims7
A pharmaceutical composition comprising a pharmaceutically acceptable carrier or diluent and a stable polyallylamine hydrochloride polymer wherein between about 4% to about 12% by weight of the polymer is chloride anion.
A pharmaceutical composition comprising a pharmaceutically acceptable carrier or diluent and a stable polyallylamine homopolymer comprising repeat units represented by Structural Formula (I):
- 4
- wherein the homopolymer is crosslinked with 2-hydroxypropyl groups, between about 9% and about 30% of the amine groups in the homopolymer are bonded to one of the 2-hydroxypropyl crosslinking groups, and between about 5% and about 9% by weight of the homopolymer is chloride anion.
Dependencies are inferred from the claim text.