It inhibits the activity of smooth muscles and glands innervated by postganglionic cholinergic nerves, and can stimulate or inhibit the central nervous system depending on the dosage of this product. The detoxification system antagonizes the effects of cholinesterase inhibitors at the M cholinergic receptor site, such as increasing the secretion of mucous glands and salivary glands in the trachea and bronchial system, contracture of bronchial smooth muscles, and hyperactivity of autonomic ganglia after stimulation. In addition, atropine can excite or inhibit the central nervous system, with a certain dose dependence. The effect on the heart, intestines and bronchial smooth muscles is stronger and more lasting than other belladonna alkaloids.

It can form a thin film on the surface of damaged gastric mucosa, thereby resisting the invasion of gastric acid on the mucosa and protecting the gastric mucosa. In addition, sucralfate can absorb pepsin and neutralize gastric acid, but the effect is weak.

This product can directly penetrate the cell membrane into the body cells, activate pyruvate oxidase, so that cells in a low-energy and hypoxic state can continue to metabolize smoothly, and participate in the energy metabolism and protein synthesis of the human body.

As a histamine H1 receptor antagonist, this product can counteract the capillary dilation caused by allergic reactions, reduce the permeability of capillaries, and relieve wheezing caused by bronchial smooth muscle contraction. This product has a long-lasting antihistamine effect and also has a significant central inhibitory effect, which can increase the effects of anesthetics, analgesics, hypnotics and local anesthetics. This product is mainly metabolized in the liver.

It combines with adenosine triphosphate to form vitamin B1 pyrophosphate (thiamine diphosphate, cocarboxylase), which is a coenzyme necessary for carbohydrate metabolism; it can inhibit the activity of cholinesterase. When it is deficient, cholinesterase activity is enhanced, acetylcholine hydrolysis is accelerated, causing nerve impulse conduction disorders and affecting gastrointestinal and myocardial function.