Quinolone Series Drugs 1994.2.21

Quinolone Series Drugs 1994.2.21

Quinolone series drugs include norfloxacin, fludioxacin, ciprofloxacin, etc., all of which introduce a fluorine atom at the 6th position of the quinoline ring. This series has a broad antibacterial spectrum, high absorption rate, few side effects, and lower prices than cephalosporins, making it highly valued. The antibacterial efficacy of this series can be referenced from the previously mentioned enoxacin, which achieved 6 instances of 100% effectiveness and 1 instance of 80% effectiveness. The usual dosage is 0.2g three times daily, totaling 0.6g per day. Side effects occur in 5%–10% of cases, with only 10% requiring discontinuation of treatment due to adverse reactions. No serious adverse reactions have been reported, so overall the reactions are relatively mild. Skin rashes, psychiatric symptoms, and effects on sexual function and genital organs are possible, so caution is advised for children. This drug has antagonistic effects with rifampicin, vancomycin, and teicoplanin, but when used in combination with beta-lactams, it can treat infections caused by antibiotic-resistant Staphylococcus aureus. The first-generation product is pipemidic acid and norfloxacin, the second-generation product is ciprofloxacin (cipro), and the third-generation product is fludioxacin (enoxacin).