What should you know about hepatitis B virus treatment?

A recent infection may need supportive care and follow-up rather than a specific antiviral medicine. Long-term hepatitis B may require antiviral treatment when tests show ongoing viral activity or liver injury. Clinicians consider blood results, symptoms, liver health, and other medical conditions. A [Liver Function Test](/treatments/diagnostics-and-screening/liver-function-test/) helps assess liver inflammation, but it is only one part of the picture. Some people need regular monitoring even when they do not feel ill.

Attend planned appointments and take prescribed medicine exactly as directed. Do not stop an antiviral suddenly or start supplements without checking, because products marketed for liver cleansing may interact with medicines. Avoid sharing razors or toothbrushes, cover cuts, and discuss testing and [Hepatitis B Vaccination](/treatments/preventive-care-and-vaccination/hepatitis-b-vaccination/) for close contacts. Limit alcohol and ask about medicines that may affect the liver. Record new symptoms such as [Fatigue](/symptoms/fatigue/) or [Dark Urine](/symptoms/dark-urine/) for your clinician.

Seek urgent care for confusion, severe abdominal pain, repeated vomiting, unusual bleeding, or rapidly worsening yellow skin or eyes. Contact your treatment team promptly if you develop marked weakness, dark urine, or new swelling, or if you cannot take your medicine because of vomiting. A missed dose is usually best handled by asking for specific instructions rather than doubling the next dose.

Ask whether your infection appears recent or long-term, which tests will track the virus and liver, how long monitoring may continue, and what to do if a dose is missed. Ask whether family or sexual contacts need testing or vaccination.