Always consult your doctor or pharmacist before taking rifampin + isoniazid.
If your condition does not improve or becomes worse, then call your doctor.
Driving or operating machinery should be avoided, as it does may cause drowsiness or dizziness.
Do NOT use rifampin + isoniazid if:
- You are allergic to any ingredient in rifampin + isoniazid or to any rifamycin;
- You have a history of hepatitis caused by any medicine;
- You are currently taking atazanavir, cabazitaxel, darunavir, delavirdine, dronedarone, etravirine, fosamprenavir, lurasidone, nifedipine praziquantel, ranolazine, saquinavir, tipranavir, a tyrosine kinase receptor inhibitor or voriconazole.
Use of rifampin + isoniazid during pregnancy or breast feeding might cause negative effect. So consult your doctor or health care professional before taking rifampin + isoniazid.