Pilocarpine is a direct-acting cholinergic drug that works by directly stimulating muscarinic receptors located on the pupillary sphincter, ciliary body, and secretory glands. Pilocarpine contracts the pupillary sphincter, causing the peripheral iris to leave the anterior wall of the angle, opening the angle and increasing the discharge of aqueous humor. At the same time, this product also contracts the longitudinal fibers of the ciliary muscle, increases the tension of the scleral process, opens the trabecular meshwork gap, reduces the resistance to aqueous humor drainage, increases the discharge of aqueous humor, and reduces intraocular pressure.

It has antipyretic and analgesic effects, can inhibit the synthesis and release of hypothalamic prostaglandins, restore the normal responsiveness of the receptor neurons in the body temperature regulation center and play an antipyretic and analgesic effect; it also has analgesic, anti-inflammatory and anti-rheumatic effects by inhibiting the synthesis of peripheral prostaglandins, and has the effect of inhibiting platelet aggregation.

It has antipyretic and analgesic effects, can inhibit the synthesis and release of prostaglandins in the hypothalamus, restore the normal responsiveness of the receptor neurons in the body temperature regulation center, and thus have an antipyretic and analgesic effect.

It is a central nervous system stimulant that can excite the cerebral cortex, increase sensitivity to the outside world, constrict cerebral blood vessels, and enhance the effect of the first two drugs in relieving headaches.

This product belongs to Class 1 antiarrhythmic drugs, and there are different opinions on its specific classification. It can inhibit fast Na influx, has a membrane stabilizing effect, shortens the 2nd and 3rd phase repolarization and action potential time, and shortens the effective refractory period. It has little effect on the autonomy of the sinoatrial node, but can prolong the conduction of the atrioventricular and His-Purkinje systems. This product has a mild hemodynamic effect and can aggravate heart failure in patients with severe organic heart disease.

It has the effects of anti-platelet aggregation, dilation of arterioles, and improvement of microcirculation. Animal experiment results show that this product is non-irritating, non-allergic, and non-hemolytic.