Rifampin

When and How to Take This Medicine

Some general considerations to keep in mind during treatment with rifampin include the following:
 
  • Rifampin comes as a capsule or an injection. The capsule is normally taken by mouth once or twice a day. The injection is normally given through a needle inserted into a vein (an intravenous, or IV, injection).
 
  • You should take rifampin capsules on an empty stomach, with a full glass of water, one hour before or two hours after a meal.
 
  • The medication can be made into a liquid suspension for people who have difficulty swallowing the capsules, such as children. Ask your healthcare provider or pharmacist if you are interested in this option.
 
  • Rifampin liquid suspension must be shaken well before use.
 
  • For the medication to work properly, it must be used as prescribed. Missing doses or not completing the full course of treatment will increase the chance that your infection will not resolve and that the bacteria causing your infection will become resistant to rifampin or other antibiotics.
 

Dosing Information for Rifampin

The dose of rifampin your healthcare provider recommends will vary, depending on several factors, including:
 
  • Your weight
  • The reason you are using it
  • How you respond to it.
 
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.
 
(Click Rifampin Dosage for more information.)
 

Drug Interactions

Rifampin may react with a number of other medicines (see Drug Interactions With Rifampin).
 

Rifampin Antibiotic Information

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