This product belongs to the lincomycin antibiotics, which is a derivative of lincomycin. Its antibacterial spectrum is the same as that of lincomycin, and its antibacterial activity is 4 to 8 times stronger than that of lincomycin. It has high antibacterial activity against Gram-positive bacteria such as Staphylococcus (including penicillin-resistant strains), Streptococcus, Corynebacterium diphtheriae, Bacillus anthracis, etc. It also has good antibacterial activity against Gram-negative anaerobic bacteria. Most of the Bacteroides, including Bacteroides fragilis, Fusobacterium, Peptococcus, Peptostreptococcus, and Clostridium perfringens, are highly sensitive to this product. Gram-negative aerobic bacteria, including Haemophilus influenzae, Neisseria, and Mycoplasma, are resistant to this product. There is no cross-resistance between this product and penicillin, chloramphenicol, cephalosporins and tetracyclines, but it has partial cross-resistance with macrolides and complete cross-resistance with lincomycin. The mechanism of action of this product is to bind to the 50S subunit of the bacterial ribosome, prevent the elongation of the peptide chain, and thus inhibit the protein synthesis of bacterial cells. This product is an antibacterial drug, but at high concentrations, it also has a bactericidal effect on certain bacteria.

This product belongs to the lincomycin antibiotics, which is a derivative of lincomycin. Its antibacterial spectrum is the same as that of lincomycin, and its antibacterial activity is 4 to 8 times stronger than that of lincomycin. It has high antibacterial activity against Gram-positive bacteria such as Staphylococcus (including penicillin-resistant strains), Streptococcus, Corynebacterium diphtheriae, Bacillus anthracis, etc. It also has good antibacterial activity against Gram-negative anaerobic bacteria. Most of the Bacteroides, including Bacteroides fragilis, Fusobacterium, Peptococcus, Peptostreptococcus, and Clostridium perfringens, are highly sensitive to this product. Gram-negative aerobic bacteria, including Haemophilus influenzae, Neisseria, and Mycoplasma, are resistant to this product. There is no cross-resistance between this product and penicillin, chloramphenicol, cephalosporins, and tetracyclines, but it has partial cross-resistance with macrolides and complete cross-resistance with lincomycin. The mechanism of action of this product is to bind to the 50S subunit of the bacterial ribosome, prevent the elongation of the peptide chain, and thus inhibit the protein synthesis of bacterial cells. This product is an antibacterial drug, but at high concentrations, it also has a bactericidal effect on certain bacteria.

1. 5-HT3 receptor antagonism: In the 5-hydroxytryptamine-induced guinea pig isolated colon contraction experiment and the rat and ferret heart rate slowing reflex (Bezold-Jarisch reflex) experiment, it showed an antagonistic effect on the 5-HT3 receptor; 2. Anti-tumor drug-induced vomiting inhibition: This product showed an inhibitory effect on vomiting induced by cisplatin in ferrets when given before vomiting or after the initial vomiting.

Quinolone is a broad-spectrum antibiotic that has bactericidal effects on Gram-negative bacteria, Gram-positive bacteria and some anaerobic bacteria, inhibits the activity of bacterial DNA gyrase, thereby inhibiting bacterial DNA transcription and replication, and has good antibacterial effects on methicillin-resistant Staphylococcus aureus, ampicillin-resistant influenza bacilli, pipemidic acid-resistant Escherichia coli and bacteria resistant to other drugs.