This product is a neutral compound of aspirin and acetaminophen bonded by an ester bond. It has antipyretic and analgesic effects, with fewer adverse reactions than aspirin, and is easily tolerated by patients. After oral administration, it is not hydrolyzed in the gastrointestinal tract, is absorbed in the intestine and quickly reaches an effective concentration in the blood, and is characterized by rarely causing gastrointestinal bleeding.

This product is the earliest sulfonamide antibiotic used for intestinal infections.

Long-acting α-receptor blockers (α1, α2) act on postganglionic α-adrenaline receptors to prevent or reverse the effects of endogenous or exogenous catecholamines, causing peripheral vasodilation and increased blood flow. Blood pressure drops slightly when lying down and can drop significantly when standing upright. A drop in blood pressure can reflexively cause an increase in heart rate.

It has a broad-spectrum antibacterial effect, especially high antibacterial activity against aerobic Gram-negative bacteria; it has antibacterial activity against most bacteria of the Enterobacteriaceae family, penicillin-resistant Neisseria gonorrhoeae, enzyme-producing Haemophilus influenzae and Moraxella, Pseudomonas aeruginosa, etc.; it has antibacterial activity against methicillin-sensitive Staphylococcus; it has good antimicrobial effect against Chlamydia trachomatis, Mycoplasma, and Legionella; it also has antibacterial activity against Mycobacterium tuberculosis and atypical mycobacteria. It acts on the A subunit of bacterial DNA helicase, inhibiting DNA synthesis and replication, leading to bacterial death.

It acts on the lower brain stem of the central nervous system, inhibits multi-synaptic reflexes, blocks nerve conduction from abnormally excited muscles, and produces muscle relaxation. It also acts on the higher centers of the cerebral cortex and has a weak sedative effect.