Firstly, the chemical constituents of plumula nelumbinis were analyzed. The main chemical constituents of plumula Nelumbinis are liensinine, isoliensinine, neferine, croissant, viola methyl, northeophylline and flavonoids such as hyperin, hyperin and rutin. In addition, lotus plumule also contains flavonoids, various volatile oils, chlorophyll, zinc, copper and iron.

Based on the composition of plumula Nelumbinis, clinical trials in modern medicine have proved that lotus plumule tea has the effects of clearing away heat, astringing semen, stopping bleeding and quenching thirst, and can treat heart failure, shock, hematemesis, nocturnal emission, red eyes, impotence, vexation, thirst and swelling and pain. Conducive to clearing away heart fire, calming liver, purging spleen, lowering lung, relieving summer heat and vexation, promoting fluid production to quench thirst, and treating eye swelling. Drinking with lotus seed core can also treat constipation.

Lotus plumule tea has a remarkable effect on lowering blood pressure. The results show that: firstly, it has obvious antihypertensive effect, and the effect of reducing diastolic blood pressure is obviously greater than systolic blood pressure, which may be related to its direct expansion of vascular smooth muscle; Secondly, it has the function of anti-arrhythmia; Third, it can obviously inhibit platelet aggregation, reduce thrombosis, and has the effects of anti-lipid peroxidation and scavenging free radicals. It is no wonder that plumula Nelumbinis has a strong activity on cardiovascular system, and is good at clearing away heat, especially suitable for patients with cardiovascular and cerebrovascular diseases in summer.

Lotus plumule tea has multiple effects and can prevent many diseases. Whether it can lower blood pressure, the answer is yes.