Wiktionary
pyrazinamide
n. (context medicine English) A bacteriostatic drug, ''pyrazine-2-carboxamide'', used to treat tuberculosis
Wikipedia
Pyrazinamide
Pyrazinamide is a drug used to treat tuberculosis. The drug is largely bacteriostatic, but can be bacteriocidal on actively replicating tuberculosis bacteria.
It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.