GENERIC NAME: ISONIAZID - INJECTION (eye-so-NYE-uh-zid)
BRAND NAME(S): Nydrazid
WARNING: Rarely, this medication has caused severe (sometimes fatal) liver problems (e.g., hepatitis). Liver problems increase with age and with daily use of alcohol. Hepatitis can develop with use of this drug at any time during treatment. Stop using this medication and notify your doctor immediately if you develop unusual fatigue, weakness, loss of appetite, nausea, vomiting, dark urine, yellowing of the eyes or skin, or stomach or abdominal pain. Your doctor may decide to slowly restart isoniazid after these symptoms disappear and lab tests return to normal. People with active (acute) liver problems should not use this medication for preventative treatment until after the liver problems have stopped. Your doctor will monitor your liver function tests at least every month to discuss your progress.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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