Timolol maleate is a non-selective β-adrenergic receptor blocker with no obvious endogenous sympathomimetic activity and local anesthetic effect, and no direct inhibitory effect on the myocardium. This product is timolol maleate eye drops, which can reduce intraocular pressure in patients with high intraocular pressure and normal people. The exact mechanism of reducing intraocular pressure is still unclear. Tonometry and aqueous humor fluorescence studies suggest that the intraocular pressure-lowering effect of this product is related to reducing aqueous humor production.

A broad-spectrum antibacterial drug, also effective against Chlamydia trachomatis. Mainly used to treat bacterial external eye infections, trachoma and bacterial intraocular infections.

Stabilize mast cell membranes and stop mast cells from releasing allergenic mediators such as histamine, leukotrienes, 5-hydroxytryptamine, bradykinin and slow-reacting substances, thereby preventing the occurrence of allergic reactions.

This product is a fluoroquinolone antibacterial drug with a broad-spectrum antibacterial effect, especially high antibacterial activity against aerobic Gram-negative bacteria. It has good antibacterial activity against the following bacteria in vitro: most bacteria of the Enterobacteriaceae family, including Citrobacter, Enterobacter cloacae, Enterobacter aerogenes and other Enterobacter species, Escherichia coli, Klebsiella, Proteus, Salmonella, Shigella, Vibrio, Yersinia, etc. Norfloxacin also has antibacterial activity against multi-drug resistant bacteria in vitro. It also has good antibacterial effects on penicillin-resistant Neisseria gonorrhoeae, Haemophilus influenzae and Moraxella catarrhalis. Norfloxacin is a bactericide that acts on the A subunit of bacterial DNA helicase, inhibiting DNA synthesis and replication, leading to bacterial death.

Aldose reductase (AR) inhibitors, which inhibit the activity of AR in the lens, are used to prevent or treat cataracts