entecavir, an antiviral drug. ▪ INDICATIONS: This drug is used to treat chronic hepatitis B. ▪ CONTRAINDICATIONS: Known hypersensitivity to this drug prohibits its use. ▪ ADVERSE EFFECTS: Adverse effects of this drug include fatigue, dizziness, insomnia, nausea, vomiting, and diarrhea. Life-threatening side effects include lactic acidosis and severe hepatomegaly with stenosis. Common side effects include headache and dyspepsia.
