OBJECTIVE:To evaluate the pharmacokinetical characteristic ofdomesticdiltiazem sustained-release capsule.METHODS:To study pharmacokinetics on asingle and multiple oral dose of domestic diltiazem sustained-release capsule in l2health volunteers in vivo, and to determined plasma concentration-time curves ofmetabolites (deacetyldiltiazem and N-demethyldiltiazem) of diltiazem. Theconcentrations of parent and metabolites of diltiazem in plasma were determined byHPLC. RESULTS:The results showed that the plasma co...