It is used to treat of tuberculosis (TB)
What should I watch for while using this medicine?Visit your doctor or health care professional for regular checks on your progress. You will need to have blood work done regularly while you are taking this medicine. This medicine can cause serious liver problems. Make sure you understand the risks for liver problems and how to identify the symptoms. If you have any questions, talk with your doctor or other health care provider.
Avoid alcoholic drinks while you are taking this medicine. Drinking alcohol during treatment with this medicine increases the risk of serious liver problems.
Do not treat diarrhea with over the counter products. Contact your doctor if you have diarrhea that lasts more than 2 days or if it is severe and watery.
You may need to take a vitamin B6 supplement while you are taking this medicine. Discuss the foods you eat and the vitamins you take with your health care professional.
Birth control pills may not work properly while you are taking this medicine. Talk to your doctor about using an extra method of birth control.
Antacids may reduce the absorption of this medicine. Doses of this medicine should be given at least 1 hour before taking antacids.
This medicine can color your urine, feces (stool), perspiration (sweat), tears, sputum, skin or saliva reddish- orange to reddish- brown. This color can last for as long as you take this medicine and is not a cause for alarm. This color in tears may permanently stain soft contact lenses. It is better not to wear soft contact lenses while you are taking this medicine. This medicine may stain dentures.
What side effects may I notice from receiving this medicine?Side effects that you should report to your doctor or health care professional as soon as possible:
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):