Patent ID: 6946146

Claim:
A coating composition for coating a solid dosage form of a medicament, where the coating composition controls the release of the medicament, said coating composition comprising: (a) at least 50% (w/w) by dry weight of a water insoluble polymer insoluble in both acidic, basic and neutral pH, present in the form of an aqueous latex dispersion, (b) a water soluble component present in a weight ratio of about 5 to about 50% (w/w) by dry weight of the coating, said water soluble component being organic and either solid or liquid and said water soluble component being selected from the group consisting of polydextrose, polyalcohol or ester of polyalcohol, a non-polymeric sugar, a non-polymeric sugar alcohol and amino acid, said ratio of water insoluble polymer to water soluble component ranging from about 95:5 to about 1:1, the solid content in the coating composition ranging from about 5% to about 25%, said water soluble component being completely dissolved in the aqueous latex dispersion.