Detailed explanation of usage and dosage specified in the instruction manual of cycloserine

Cycloserine (Cycloserine) is an antibiotic used to treat pulmonarytuberculosis and other infections caused by mycobacteria, especially in cases of resistance to first-line anti-tuberculosis drugs. It is a second-line anti-tuberculosis drug with broad-spectrum antibacterial activity, but is mainly used in multi-drug combination treatment regimens for tuberculosis in clinical applications. The standard starting dose for the treatment of tuberculosis in adults and adolescents is 250 mg twice daily, as recommended in the package insert. If the patient tolerates it well and does not experience obvious central nervous system side effects, the dose can be gradually increased to 250 mg three or four times a day, and the total dose should not exceed 1,000 mg/day to maintain efficacy and reduce the risk of drug resistance.

For pediatric patients, the dosage of cycloserine needs to be calculated individually based on body weight. It is generally recommended to be 10 to 20 mg per kilogram of body weight per day (equivalent to 4.5 to 9.1 mg per pound), taken in 2 to 3 times. Since children's metabolism and pharmacological reactions to drugs are different from those of adults, they must be used under the guidance of an experienced pediatrician or tuberculosis specialist and closely monitored for possible adverse reactions, especially neuropsychiatric adverse events, such as mood swings, behavioral changes and even epileptic seizures

It should be noted that cycloserine is never used as a single drug. It must be used in combination with other anti-tuberculosis drugs such as ethambutol, rifampicin, pyrazinamide, etc. to prevent the development of drug resistance and improve the success rate of treatment. Patients should follow strict compliance throughout the treatment period and undergo regular hematology tests and liver and kidney function monitoring. Since cycloserine has central nervous system penetration, it may cause side effects such as headache, anxiety, depression, insomnia, etc. It should be used with caution in patients with a history of mental illness. In severe cases, the drug must be discontinued immediately and symptomatic treatment must be given. In addition, to reduce the risk of neurotoxicity, doctors often recommend that patients also supplement vitamin B6 (pyridoxine).

Reference materials:https://en.wikipedia.org/wiki/Cycloserine