Rifampin is available by prescription only and is used to treat a variety of bacterial infections. Specifically, it is approved to treat tuberculosis and to get rid of bacteria known as Neisseria meningitides. This antibiotic comes in the form of capsules and an injection. Your individual dosage will depend on your weight, the reason you are taking the drug, and other factors.


What Is Rifampin?

Rifampin (Rifadin®) is a prescription antibiotic that comes in oral (taken by mouth) and injectable forms. Oral rifampin is approved for the following uses:
  • To treat tuberculosis, usually along with other tuberculosis medications.
  • To get rid of Neisseria meningitides (the bacteria that causes meningococcal infections, such as meningitis) in people who have this bacteria in their nose and throat but do not have symptoms of a meningococcal infection.
Injectable rifampin is used to treat tuberculosis when the medication cannot be taken by mouth.
(Click What Is Rifampin Used For? for more information, including possible off-label uses.)

Are There Side Effects?

Just like any medicine, rifampin can cause side effects. However, not everyone who uses the drug will experience problems. Most people tolerate it quite well.
If reactions do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider. Serious side effects are less common.
Some of the possible rifampin side effects include but are not limited to:
  • Heartburn
  • Loss of appetite
  • Headache
  • Drowsiness
  • A reddish color of the urine, sweat, saliva, and tears. 
(Click Rifampin Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)

Rifampin Antibiotic Information

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