It has a direct relaxant effect on the smooth muscles of the respiratory tract; partly by inhibiting phosphodiesterase to increase the intracellular cAMP content; partly due to the release of endogenous adrenaline and norepinephrine; as a purine receptor blocker, it can counteract the contractile effect of adenine and other substances on the respiratory tract; it can enhance the contractility of the diaphragm and improve respiratory function.

This product is a gastrin receptor antagonist, which can significantly inhibit the secretion of gastric acid and pepsin caused by gastrin, but has no obvious effect on the gastric acid secretion caused by histamine and vagus nerve stimulation. It can increase the content of hexosamine in the gastric mucosa, promote glycoprotein synthesis, protect the gastric mucosa and promote healing, improve the symptoms of peptic ulcer and promote ulcer healing. The use of this product to treat peptic ulcer and gastritis does not cause rebound of gastric acid secretion, and gastric acid secretion can remain at a normal level for up to half a year after the treatment is terminated. In addition, this product has a choleretic effect, which prevents and removes stones by stimulating bile acid-independent bile secretion, changing the stone-forming factors in bile, and antagonizing CCK to inhibit the gallbladder contraction-promoting effect of endogenous CCK.

This product is an H1 receptor antagonist, which can inhibit the permeability of capillaries and quickly relieve itching. This product also has anticholinergic and sedative effects.

Central muscle relaxants mainly act on the spinal cord and subcortical areas of the brain to produce muscle relaxation effects. They take effect within 1 hour after oral administration and last for 3-4 hours.

Pharmacology: This product is a central muscle relaxant, which mainly acts on the spinal cord and subcortical areas of the brain to produce muscle relaxation. It takes effect within 1 hour after oral administration and lasts for 3-4 hours.

A selective β2 receptor agonist, it can selectively stimulate the β2 receptors of bronchial smooth muscle and has a strong bronchodilator effect. Its aerosol inhalation has less stimulating effect on the heart than isoproterenol.