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What is rifampicin?

Rifampicin is no longer available in the United States.

Rifampicin, more commonly known as rifampin in the United States, is one of the four main prescription medications that treat tuberculosis (TB), along with isoniazid, ethambutol, and pyrazinamide. As an antibiotic, rifampicin kills the bacteria that cause tuberculosis and can help prevent them from spreading. Because bacteria can quickly develop a resistance to rifampicin, doctors often prescribe rifampicin along with a combination of other medications, or a drug cocktail. Other than treating tuberculosis, rifampicin may also be effective at killing bacteria that cause diseases such as gonorrhea, Legionnaires' disease, leprosy, and haemophilus influenzae.

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