Zelda is the dried tuber of Zelda family plants. Pharmacological effects: 1, hypolipidemic effect - zelda significantly lower serum TC, lower TG.LDL-C, elevated HDL-C in hyperlipidemic animals. 2, the protective effect on the liver. 3, the effect on the cardiovascular system: zelda extract to dogs and rabbits intravenous injection, there is a mild antihypertensive effect, zelda mollusc with the technique of isolated cardiac perfusion can be seen in the reduction of cardiac output and heart rate as well as left ventricular pressure, but can be used to reduce the heart's pressure. output and heart rate and left ventricular pressure, but can increase coronary flow.4, diuretic effect.