Generic Name: Rifapentine (rif a PEN teen)
Brand Name: Priftin
Medically reviewed on September 5, 2018
Uses of Priftin:
- It is used to treat TB (tuberculosis).
What do I need to tell my doctor BEFORE I take Priftin?
- If you have an allergy to rifapentine or any other part of Priftin (rifapentine).
- 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 have porphyria.
- If you are breast-feeding or plan to breast-feed.
This is not a list of all drugs or health problems that interact with Priftin (rifapentine).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Priftin (rifapentine) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Priftin?
- Tell all of your health care providers that you take Priftin (rifapentine). This includes your doctors, nurses, pharmacists, and dentists.
- This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take Priftin (rifapentine).
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- Do not skip doses. Skipping doses may cause Priftin (rifapentine) to not work as well. Other TB drugs may no longer work as well either.
- Take vitamin B6 (pyridoxine) as you were told by your doctor.
- This medicine may stain contact lenses.
- This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking Priftin (rifapentine) with your other drugs.
- 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 Priftin (rifapentine).
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Priftin (rifapentine) while you are pregnant.
- This medicine may color breast milk an orange or red color. Talk with the doctor.
How is this medicine (Priftin) best taken?
Use Priftin (rifapentine) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take with food.
- If you cannot swallow tablets, the tablet may be crushed and added to a small amount of soft food. Take the mixture right away. Do not store for future use.
- To gain the most benefit, do not miss doses.
- Keep taking Priftin (rifapentine) as you have been told by your doctor or other health care provider, even if you feel well.
What do I do if I miss a dose?
- Take a missed dose as soon as you think about it, with food.
- 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.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- 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, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- 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.
- A heartbeat that does not feel normal.
- Feeling very tired or weak.
- Any unexplained bruising or bleeding.
- Fever or chills.
- Sore throat.
- Chest pain or pressure or a fast heartbeat.
- Dizziness or passing out.
- Flu-like signs. These include headache, weakness, fever, shakes, aches, pains, and sweating.
- Muscle pain.
- Eye redness.
- Shortness of breath.
- Swollen gland.
- It is common to have diarrhea when taking Priftin (rifapentine). Rarely, a very bad form of diarrhea called Clostridium difficile (C diff)–associated diarrhea (CDAD) may occur. Sometimes, this has led to a deadly bowel problem (colitis). CDAD may happen while you are taking Priftin (rifapentine) 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.
What are some other side effects of Priftin?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Loose stools (diarrhea).
- Not hungry.
- Joint pain.
- Upset stomach or throwing up.
- Change in color of body tissues like skin, teeth, or tongue or body fluids to orange or red.
- A long-lasting change in color of dentures.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
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.
How do I store and/or throw out Priftin?
- Store at room temperature.
- Protect from heat.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- 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.
- This medicine comes with an extra patient fact sheet called a Medication Guide. Read it with care. Read it again each time Priftin (rifapentine) is refilled. If you have any questions about Priftin (rifapentine), please talk with the 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.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Priftin (rifapentine)
- Priftin Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Pricing & Coupons
- En Español
- Drug class: rifamycin derivatives