About entecavir as monohydr
Nucleoside analogue antiviral
Used for
- Treatment of chronic hepatitis B infection
Usual adult dose
Usually 0.5 mg once daily; 1 mg once daily for certain resistant infections.
Usual dose in children
For children aged 2 years and older, dosing depends on weight and treatment history.
Common side effects
- Headache
- Fatigue
- Dizziness
- Nausea
Important warnings
- Stopping treatment may cause hepatitis B to flare severely.
- Rarely, lactic acidosis or enlarged fatty liver may occur.
- Kidney impairment requires dose adjustment.
- HIV infection should be assessed; entecavir alone may promote HIV resistance.
Pregnancy
Human pregnancy data are limited; use requires a clinician’s assessment of benefits and risks.
Breastfeeding
It is unknown whether entecavir enters breast milk; discuss breastfeeding with a clinician.
Interactions
- Other medicines affecting kidney function may increase entecavir exposure.
- Food reduces absorption; take on an empty stomach.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.