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What happens if I miss a dose (Priftin)?

Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose (Priftin)?

Seek emergency medical attention if you think you have used too much of this medicine.

Overdose symptoms may include headache, heartburn, nausea, or urinating more than usual.

What should I avoid while taking rifapentine (Priftin)?

Do not wear dentures or contact lenses while taking rifapentine. This medicine may discolor certain body fluids (including tears and saliva) with a red, orange, or brown color. While this is a harmless side effect, it may permanently stain a pair of contact lenses.

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or has blood in it, call your doctor. Do not use any medicine to stop the diarrhea unless your doctor has told you to.

What other drugs will affect rifapentine (Priftin)?

Before taking rifapentine, tell your doctor if you are using any of these HIV or AIDS medications:

• abacavir (Ziagen);
• amprenavir (Agenerase);
• delavirdine (Rescriptor);
• didanosine (Videx);
• efavirenz (Sustiva);
• indinavir (Crixivan);
• lamivudine (Combivir, Epivir);
• nelfinavir (Viracept);
• nevirapine (Viramune);
• ritonavir (Norvir);
• saquinavir (Invirase, Fortovase);
• stavudine (Zerit);
• zalcitabine (Hivid); or
• zidovudine (Retrovir).

Where can I get more information?

Your pharmacist can provide more information about rifapentine.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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