Table 2: Cumulative dissolution of core tablets and release of coating tablets in 0.5% SDS and water.

Molar ratios of vin and citric acid1 : 01 : 1/31 : 2/31 : 11 : 4/31 : 6/31 : 7/3

Cumulative dissolution %4.2311.9614.5530.6055.5666.4291.02
Cumulative release %19.7630.1351.5054.3571.5784.7692.41