This product is a dopamine 2 (D2) receptor antagonist, and also has a 5-hydroxytryptamine 4 (5-HT4) receptor agonist effect, and has a mild inhibitory effect on 5-HT3 receptors. It can act on dopamine receptors in the medullary emetic chemoreceptor zone (CTZ) to increase the threshold of CTZ, and has a strong central antiemetic effect. This product can also block hypothalamic dopamine receptors, inhibit prolactin inhibitory factor, and promote the secretion of prolactin, so it has a certain lactation effect. The inhibitory effect on other parts of the central nervous system is relatively small, with a weak sedative effect and less hypnotic effect. The effect on the gastrointestinal tract is mainly in the upper digestive tract, promoting the movement of the stomach and upper intestinal segments; increasing the tension of the gastrointestinal sphincter in the resting state, increasing the tension and contraction amplitude of the lower esophageal sphincter, and increasing the pressure at the lower end of the esophagus.

1. Bronchodilator effect, the effect is better than isoproterenol, salbutamol, etc.; 2. The duration of bronchodilator effect is longer than isoproterenol, chlorpromazine, metaproterenol and salbutamol; 3. The selectivity for β2-receptors is stronger than isoproterenol, chlorpromazine, metaproterenol and salbutamol; 4. The anti-allergic effect is stronger than isoproterenol, metaproterenol and salbutamol; 5. Hyperactivity of respiratory cilia; 6. Inhibits exercise-induced asthma; 7. Inhibits airway hyperresponsiveness in dogs inoculated with influenza C virus; 8. It has an inhibitory effect on increased vascular permeability, which is basically the same as isoproterenol, and its inhibitory effect on pulmonary edema is stronger than salbutamol; 9. Inhibits cough in patients with acute bronchitis induced by inhalation of substance P.

It has high affinity and selectivity for CysLT1 receptors, and can effectively inhibit the physiological effects of LTC4, LTD4 and LTE4 binding to CysLT1 receptors without any receptor agonist activity. It improves the indicators of asthma inflammation, and reduces leukotriene-mediated effects such as bronchoconstriction, mucus secretion, increased vascular permeability and eosinophil aggregation.

Zinc is an important component of many enzymes in the body and has the functions of promoting growth and development, improving taste, etc.

Antibacterial drug. It has a broad antibacterial spectrum and has inhibitory effects on a variety of Gram-positive and Gram-negative bacteria in vitro, among which it has a strong inhibitory effect on hemolytic streptococci, Staphylococcus aureus, Vibrio cholerae, Neisseria meningitidis, Shigella, Salmonella typhi, Corynebacterium diphtheriae, etc. It also has a certain effect on amoeba.