Preparation and In Vitro/In Vivo Evaluation of Vinpocetine Elementary Osmotic Pump System

Table 2

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

Molar ratios of vin and citric acid	1 : 0	1 : 1/3	1 : 2/3	1 : 1	1 : 4/3	1 : 6/3	1 : 7/3
Cumulative dissolution %	4.23	11.96	14.55	30.60	55.56	66.42	91.02
Cumulative release %	19.76	30.13	51.50	54.35	71.57	84.76	92.41