What is rifampin?
Rifampin is an antibacterial prescription medicine approved by the U.S.(FDA) for the treatment of (TB). Rifampin is also FDA-approved to treat people who carry Neisseria meningitidis bacteria but have no symptoms of disease.
TB can be an What is an Opportunistic Infection? fact sheet.(OI) of HIV. An OI is an that occurs more frequently or is more severe in people with weakened —such as people with HIV—than in people with healthy immune systems. To learn more about OIs, read the HIVinfo
To learn how HIV and TB are connected, read the HIVinfo HIV and Tuberculosis (TB) fact sheet. The fact sheet includes information on the difference between (LTBI) and active .
How is rifampin used in people with HIV?
The Guidelines for the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents with HIV and the Guidelines for the Prevention and Treatment of Opportunistic Infections in Children with and Exposed to HIV include recommendations on the uses of rifampin in people with HIV to treat:
- to prevent the infection from advancing to active
- Active TB disease
- Certain Bartonella infections (also called ), such as infections of the , inner lining of the heart (endocardium), and other severe infections
What should I tell my health care provider before using rifampin?
Before using rifampin, tell your health care provider:
- If you are allergic to rifampin, rifabutin, rifapentine or any other medicines.
- About any medical conditions you have or have had, including:
- Porphyria (a group of genetic disorders that affect the skin or nervous system)
- Bleeding problems or blood clotting disorders
- Vitamin K deficiency
- About anything that could affect your ability to take medicines, such as difficulty swallowing pills, difficulty remembering to take pills, or any health conditions that may prevent your use of (IV) medicines.
- If you are pregnant or plan to become pregnant. Talk to your health care provider about the risks and benefits of using rifampin during pregnancy. The Guidelines for the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents with HIV may include other recommendations on the use of rifampin during pregnancy. Please refer to these guidelines for additional information.
- If you are breast/chestfeeding or plan to breast/chestfeed. For people with HIV in the United States, the Guideline recommends speaking with your health care provider to discuss options for feeding your baby. People with suppressed viral load have a less than 1% chance of transmitting HIV to their baby via their own milk.
- About other prescription and nonprescription medicines, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Rifampin may affect the way other medicines or products work, and other medicines or products may affect how rifampin works. Ask your health care provider if there are interactions between rifampin and the other medicines you take.
Ask your health care provider about possible side effects from rifampin. Your health care provider will tell you what to do if you have side effects.
How should I use rifampin?
Use rifampin according to your health care provider’s instructions. Your health care provider will tell you how much rifampin to use and when to use it. Before you start rifampin and each time you get a refill, read any printed information that comes with your medicine.
How should rifampin be stored?
- Store rifampin capsules at 77°F (25°C). Store the capsules in a dry place and avoid excessive heat.
- Store rifampin for IV injection at 77°F (25°C) and avoid excessive heat (temperatures above 104°F [40°C]). Protect the medicine from light.
- Keep rifampin in the container that it came in and keep the container tightly closed.
- Do not use rifampin if the original seal over the container opening is broken or missing.
- Throw away rifampin that is no longer needed or expired (out of date). Follow FDA guidelines on how to safely dispose of unused medicine.
- Keep rifampin and all medicines out of reach of children.
Where can I find more information about rifampin?
- Recommendations on the HIV-related uses of rifampin, from the Guidelines for the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents with HIV and the Guidelines for the Prevention and Treatment of Opportunistic Infections in Children with and Exposed to HIV.
- This Patient Version drug summary is based on the following FDA label(s): Capsule; Injection (powder, lyophilized, for solution).
- The American Hospital Formulary Service (AHFS) Patient Medication Information for rifampin available from MedlinePlus.
- Rifampin-related research studies, from . (The ClinicalTrials.gov search can be modified so that you can get results that better match your interests. To learn more about the ClinicalTrials.gov search features, please see How to Search.)
Last Reviewed: May 17, 2023