 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Rifapentine can speed up the removal of other medications from your body, which may affect how they work. Examples of affected drugs include asunaprevir, digoxin, phenytoin, ranolazine, tacrolimus, "blood thinners" (such as warfarin), calcium channel blockers (such as diltiazem, verapamil), HIV NNRTIs (such as etravirine, nevirapine), HIV protease inhibitors (such as atazanavir, darunavir), among others. This medication may decrease the effectiveness of hormonal birth control such as pills, patch, or ring. This could cause pregnancy. Discuss with your doctor or pharmacist if you should use additional reliable birth control methods while using this medication. Also tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your birth control is not working well. This medication may interfere with certain lab tests (such as folate and vitamin B12 levels), possibly causing false test results. Make sure lab personnel and </s>