A patient with tuberculosis is prescribed rifampin as part of a multi-drug regimen. Which of the following is true about rifampin?


•Rifampin is a tuberculocidal agent that is used to treat tuberculosis, an active bacteria.

•Rifampin has a large number of drug-to-drug interactions.

•Rifampin inhibits DNA-dependent RNA polymerase activity is susceptible cells.

•Rifampin can may cause a harmless and temporary reddish discoloration of urine, sweat, saliva, or tears. 

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