1. This product is a coenzyme of methyltransferase, participating in and promoting the methylation of homocystine into methionine. 2. It participates in nucleic acid synthesis in the body, promotes the division and maturation of megaloblasts, and improves anemia symptoms. 3. It can improve the metabolism of nucleic acids, proteins and lipids in nerve cells, accelerate the repair and functional recovery of degenerated or pathologically atrophied nerve tissue, thereby improving nerve function, movement and peripheral nerve function.

Relaxes vascular smooth muscle, reduces myocardial oxygen consumption, increases oxygen supply, and relieves angina. It activates guanylate cyclase by releasing nitric oxide (NO), increases cyclic guanosine monophosphate (cGMP) in smooth muscle cells, thereby relaxing vascular smooth muscle, dilating peripheral arteries and veins, reducing preload and afterload, and increasing coronary artery perfusion.

This product is a respiratory stimulant. In small doses, it reflexively excites the respiratory center through the carotid body chemoreceptors. In large doses, it directly excites the medullary respiratory center, increasing the tidal volume and increasing the respiratory rate to a limited extent. Large doses excite the spinal cord and brainstem, but seem to have no effect on the cerebral cortex. When patients with obstructive pulmonary disease have acute ventilation insufficiency, the use of this drug can improve tidal volume, blood carbon dioxide partial pressure, and oxygen saturation.

It may block the generation and conduction of nerve impulses by increasing the threshold of nerve action potential, delaying the spread of nerve impulses, and reducing the speed of action potential increase. The generation of anesthetic effect is related to the axial diameter, myelination and conduction velocity of nerve fibers.