Rifampin

WHAT IS IT?

Rifampin is a rifamycin, and is a RNA polymerase inhibitor. It inhibits DNA-dependent RNA polymerase in prokaryotes. 

WHEN DO WE USE IT?

During active tuberculosis infection: this medication is used to fight against infection with Mycobacterium tuberculosis

Leprosy: rifampin and dapsone are used together to try and treat the tuberculoid form of leprosy (Mycoplasma leprae). It delays the resistance to dapsone when used for leprosy. 

Meningococcal prophylaxis: given to patients with exposure to Neisseria meningitidis in order to prevent infection. 

Haemophilus influenzae type B prophylaxis 

WHEN DO WE AVOID USING IT?
HOW IS IT ADMINISTERED?
WHAT ARE THE SIDE EFFECTS/TOXICITY?

Drug induced hepatitis can be caused by this medication. 

ANYTHING ELSE TO KEEP IN MIND?

Drug resistance: Some mutations can reduce drug binding to RNA polymerase. Monotherapy rapidly leads to drug resistance.  

 

Page Updated: 02.21.2017