Studies have shown that the use of Astragalus injection has a positive inotropic effect on the heart, enhances myocardial contractility, increases coronary blood flow, protects myocardial cells, and improves cardiovascular function.

Nimodipine is a Ca channel blocker that inhibits smooth muscle contraction by preventing Ca from entering cells, thereby relieving vasospasm. It has a strong effect on cerebral arteries and can easily pass through the blood-brain barrier, preventing vasospasm after subarachnoid hemorrhage, and has the effects of protecting and promoting memory and intellectual recovery, selectively dilating cerebral blood vessels, increasing cerebral blood flow, and reducing ischemic brain damage.

By hindering the bacterial transpeptidation process and inhibiting bacterial protein synthesis, it has antibacterial effects on a variety of Gram-positive aerobic bacteria, Gram-negative aerobic bacteria, anaerobic bacteria, sexually transmitted disease microorganisms and other microorganisms. The mechanism of action is the same as that of erythromycin, mainly binding to the 50S subunit of the bacterial ribosome to inhibit RNA-dependent protein synthesis.