How much is the domestic market price of cycloserine?

Cycloserine (Cycloserine) is an antibiotic used to treat bacterial infections such as tuberculosis and urinary tract infections. It was first isolated from actinomycetes in 1952 and played an important role in anti-tuberculosis treatment.

Cycloserine has a unique chemical structure and is an amino acid derivative that belongs to the β- lactam antibiotics. Its mechanism of action is to competitively inhibit D-alanine-D-alanine ligase, preventing the cross-linking of peptidoglycan, thus interfering with the synthesis of bacterial cell walls and leading to bacterial death. Cycloserine also shows some activity against drug-resistant strains, making it particularly important in the treatment of multidrug-resistant tuberculosis (MDR-TB).

In clinical applications, cycloserine is often used as a second-line drug for the treatment of drug-resistant tuberculosis, especially in cases of resistance to other anti-tuberculosis drugs (such as isoniazid and rifampicin). Cycloserine is well absorbed orally and can effectively penetrate into various tissues and body fluids of the human body, including the lungs and cerebrospinal fluid, which makes it effective in treating tuberculosis and tuberculous meningitis.

Although cycloserine plays an important role in anti-tuberculosis treatment, its use is also associated with some adverse effects. The most common adverse reactions are central nervous system symptoms, including headache, dizziness, insomnia, depression and anxiety, and may even trigger epilepsy and psychotic symptoms. Therefore, when using cycloserine treatment, patients need to be closely monitored by a doctor so that the dose can be adjusted or discontinued in a timely manner.

In terms of price, cycloserine is now available in China and has been included in medical insurance. Patients can purchase this drug in China. The domestic drug specification is 250 mg 10 tablets, and the price is about a few hundred yuan. For specific prices and medical insurance reimbursement ratios, you need to consult the local hospital pharmacy. In addition, foreign Indian generic drugs are relatively cheap. The specifications are 250mg and 60 tablets. The price is about 600 yuan, and the ingredients are basically the same as domestic drugs.