It competitively blocks the binding of histamine to H2 receptors and inhibits gastric acid secretion. It is a potent H2 receptor blocker, and its gastric acid inhibition effect is 5 to 12 times that of cimetidine on a molar basis.

It can significantly inhibit the day and night basal gastric acid secretion, and can also inhibit the gastric acid secretion induced by food, histamine, pentagastrin, caffeine and insulin.

This product is a brain metabolism improving drug, which is a cyclic derivative of g-aminobutyric acid. It has the effect of resisting brain function damage caused by physical and chemical factors. It can promote ATP in the brain, promote acetylcholine synthesis and positively enhance the conduction of nerve excitement, and has the effect of promoting brain metabolism. It can resist brain function damage caused by physical and chemical factors. It has an improving effect on retrograde amnesia caused by hypoxia. It can enhance memory and improve learning ability.

This product is the dried bacteria of brewer's yeast, rich in B vitamins, and has an auxiliary therapeutic effect on indigestion

This product is the levorotatory form of tetramisole, which can selectively inhibit succinate dehydrogenase in the muscles of the worm, so that fumaric acid cannot be reduced to succinic acid, thereby affecting the anaerobic metabolism of the muscles of the worm and reducing energy production. When the worm comes into contact with it, it can depolarize the nerves and muscles, and the muscles will continue to contract and cause paralysis; the drug's cholinergic effect is conducive to the excretion of the worm. Its activity is about 1 to 2 times that of tetramisole (racemic form), but its toxic side effects are lower. In addition, the drug may have an inhibitory effect on the microtubule structure of the worm. Levamisole also has immune regulation and immune excitation functions.