- It is used to treat TB (tuberculosis).
- It is used to stop the spread of meningitis in people who carry the bacteria but are not sick with the disease.
- It may be given to you for other reasons. Talk with the doctor.
- If you have an allergy to rifampin or any other part of this drug.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you are taking any of these drugs: Atazanavir, darunavir, fosamprenavir, saquinavir, or tipranavir.
- Tell dentists, surgeons, and other doctors that you use this drug.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- This drug may affect certain lab tests. Be sure your doctor and lab workers know you take this drug.
- Talk with your doctor before you drink alcohol.
- If you have high blood sugar (diabetes), you will need to watch your blood sugar closely.
- This drug may stain contact lenses.
- Birth control pills and other hormone-based birth control may not work as well to prevent pregnancy. Use some other kind of birth control also like a condom when taking this drug.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Feeling very tired or weak.
- Not able to pass urine or change in how much urine is passed.
- Blood in the urine.
- Change in thinking clearly and with logic.
- Flu-like signs.
- Fever or chills.
- Sore throat.
- Joint pain or swelling.
- Muscle pain or weakness.
- Shortness of breath.
- Swelling in the arms or legs.
- Any bruising or bleeding.
- Change in balance.
- Not able to focus.
- Change in how you act.
- Period (menstrual) changes.
- Change in eyesight.
- It is common to have loose stools (diarrhea) when taking this drug. Rarely, a very bad and sometimes deadly form of loose stools may occur (pseudomembranous colitis). This may happen while you are taking this drug or within a few months after you stop taking it. Call your doctor right away if you have stomach pain or cramps, very loose or watery stools, or bloody stools. Do not try to treat loose stools without first checking with your doctor.
- Very bad and sometimes deadly liver problems have happened with this drug. Call your doctor right away if you have signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Pain where the shot was given.
- Redness or swelling where the shot is given.
- Loose stools (diarrhea).
- Feeling sleepy.
- Upset stomach or throwing up.
- Not hungry.
- Feeling tired or weak.
- Change in color of body fluids to orange or red.
- To gain the most benefit, do not miss doses.
- Take as you have been told, even if you feel well.
- Take on an empty stomach. Take 1 hour before or 2 hours after meals.
- Take with a full glass of water.
- Do not take antacids within 1 hour of this drug.
- A liquid (suspension) can be made if you cannot swallow pills. Talk with your doctor or pharmacist.
- Shake well before use.
- Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, get an oral syringe, a dropper, a spoon, or a cup (only for older children) from your pharmacist.
- It is given as a shot into a vein.
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Store at room temperature.
- Protect from heat.
- Store in a dry place. Do not store in a bathroom.
- Store liquid (suspension) at room temperature or in a refrigerator. Throw away any unused portion after 4 weeks.
- This drug will be given to you in a hospital or doctor’s office. You will not store it at home.
- Keep all drugs out of the reach of children and pets.
- Check with your pharmacist about how to throw out unused drugs.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
If you have any questions or concerns, talk with a member of your healthcare team. You can reach them Monday through Friday from 9:00 am to 5:00 pm at ____________________. After 5:00 pm, during the weekend, and on holidays, please call____________________. If there’s no number listed, or you’re not sure, call
Rifampin©2015 Memorial Sloan Kettering Cancer Center - Generated on July 7, 2015