What it does:
Treats chronic hepatitis B. May also help inhibit HIV replication, although this use has not been studied
0.5 or 1.0 mg, once daily, in tablet form or oral solution. Should be taken without food, on an empty stomach at least two hours after a meal and two hours before the next meal
Drug interactions, precautions, & recommendations:
People with HIV should be receiving antiretroviral treatment for that as well, as resistance to anti-HIV drugs may develop otherwise. May affect concentration of drugs that reduce kidney function or vice versa. Those with decreased kidney function may need to reduce dosage.
Most serious: worsening of hepatitis B after discontinuation of treatment, other liver problems, buildup of lactic acid in the blood Other: headache, fatigue, dizziness, nausea