This product belongs to the piperazine phenothiazine. Its antipsychotic effect is mainly related to its blocking of dopamine receptors (DA11) in the brain, inhibiting the ascending activation system of the reticular formation and having a sedative effect. Its antiemetic and blood pressure lowering effects are weaker.

The antipsychotic effect is related to its ability to block dopamine receptors in the brain and promote the conversion of dopamine in the brain. It has a good effect on resisting hallucinations and delusions and excitement and agitation. It has a strong effect on blocking extrapyramidal dopamine and antiemetic effect, but its sedative effect and blocking effects on adrenaline receptors and cholinergic receptors are weak.

This product is an analogue of diphenhydramine, which mainly suppresses cough center and relieves cough. It also has a weak antihistamine effect and has no dependence or tolerance. It takes effect 20-30 minutes after taking it and the effect lasts for 3-4 hours.

It has a strong antitussive effect, and has antihistamine, smooth muscle spasm relief, anti-inflammatory and local anesthetic effects. The antitussive effect usually appears 30-60 minutes after taking the medicine, and the effect lasts for 4-6 hours or longer.

It selectively relaxes the ballistic smooth muscle and directly inhibits the sphincter of Oddi in the biliary tract, reduces the resistance to the passage of the common bile duct at the junction of the duodenum, reduces the pressure inside the gallbladder and bile duct, promotes the excretion of bile and pancreatic juice, improves appetite, eliminates abdominal distension, and has antispasmodic, analgesic and choleretic effects.