Content: minimum 0.1 per cent of total nitidine, expressed as nitidine hydrochloride (C 20 H 18 NO 2 Cl;M r 366.13) (dried drug).

• 本品按干燥品计算，所含两面针碱以氯化两面针碱（C 20 H 18 NO 2 Cl）计，不得少于 0.；1 %25。