First-generation cephalosporins have a broad antibacterial spectrum and are highly active against gram-positive bacteria. They are sensitive to penicillinase-producing and non-penicillinase-producing Staphylococcus aureus, coagulase-negative Staphylococci, Streptococcus pyogenes, Streptococcus pneumoniae, group B hemolytic Streptococcus, viridans streptococci, Staphylococcus epidermidis, Corynebacterium diphtheriae, and Bacillus anthracis. Haemophilus influenzae, Neisseria meningitidis, Moraxella catarrhalis, and Neisseria gonorrhoeae are highly sensitive. Some strains of Escherichia coli, Klebsiella, Salmonella, Shigella, and Proteus are moderately sensitive, and most of the remaining gram-negative rods are resistant. Gram-positive anaerobic bacteria are sensitive, and Bacteroides fragilis is resistant. It mainly inhibits the synthesis of bacterial cell walls.

It has strong antibacterial activity against Gram-positive bacteria and also has broad-spectrum antibacterial activity against bacteria including Gram-negative bacteria. At the same time, it has strong antibacterial activity against glucose non-fermenting Gram-negative bacteria such as Pseudomonas aeruginosa. The drug has a bactericidal effect and is stable to β-lactamase produced by various bacteria. When used for experimental infection (mice), it shows excellent therapeutic effects. It is sensitive to bacteria resistant to penicillin, other cephalosporins or aminoglycoside antibiotics, especially Pseudomonas aeruginosa. It has a strong affinity with 1A, 1B and 3 of penicillin binding protein (PBP), inhibiting the synthesis of bacterial cell wall, thereby exerting a bactericidal effect.

It is an antipyretic and analgesic drug that produces analgesic effects mainly by inhibiting prostaglandin synthesis.

It is an expectorant for nausea. It stimulates the gastric mucosa, causing mild nausea and reflexively increasing the secretion of respiratory glands, making the sputum thinner and easier to cough up.

It is an adrenaline-mimetic drug that can constrict the blood vessels of the nasal mucosa and relieve symptoms of nasal congestion and runny nose.

It is a central antitussive drug that can inhibit the cough center in the medulla oblongata to produce an antitussive effect. The general therapeutic dose does not inhibit breathing, and long-term use is non-addictive and non-tolerant.

It can combine with tears and replace the tear film, eliminating discomfort such as burning and irritation caused by dry eyes; it can repair the corneal epithelium and reduce the permeability to normal values.

It can combine with tears and replace tear film, eliminating the burning, irritation and other discomfort caused by dry eyes. It can repair the corneal epithelium and reduce the permeability to normal values.