Lamivudine — Uses, Dosage, Side Effects & Safety

Drug class: Antiviral (Nucleoside Reverse Transcriptase Inhibitor - NRTI)

Overview

Lamivudine is an antiviral medication used to treat infections caused by the human immunodeficiency virus (HIV) and hepatitis B virus (HBV). It is commonly prescribed as part of combination therapy for HIV infection and as a monotherapy or in combination for chronic hepatitis B. Lamivudine works by blocking the action of reverse transcriptase, an enzyme that viruses need to multiply. By interfering with this process, lamivudine helps lower the amount of virus in the body, supporting the immune system and reducing the risk of complications. Key points for patients: Lamivudine does not cure HIV or hepatitis B, but it helps control these infections. It is important to take the medication exactly as prescribed and not to miss doses. Stopping treatment suddenly can lead to worsening of hepatitis B or resistance in HIV.

Therapeutic uses

• HIV-1 infection
• Chronic hepatitis B virus (HBV) infection

Common side effects

• Headache
• Nausea
• Diarrhea
• Fatigue
• Pancreatitis
• Lactic acidosis
• Hepatomegaly with steatosis

Frequently Asked Questions about Lamivudine

What is lamivudine used for?

Lamivudine is used to treat HIV infection (as part of combination therapy) and chronic hepatitis B infection.

Can lamivudine cure HIV or hepatitis B?

No, lamivudine does not cure HIV or hepatitis B. It helps control the infection and reduces the risk of complications.

What should I do if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue your regular schedule. Do not double the dose.

What are the serious side effects of lamivudine?

Serious side effects include lactic acidosis, severe liver problems, pancreatitis, and allergic reactions. Seek medical help if you experience symptoms like severe abdominal pain, jaundice, or difficulty breathing.

Can I stop taking lamivudine if I feel better?

No, do not stop taking lamivudine without your doctor's advice. Stopping suddenly can worsen hepatitis B or cause HIV resistance.

Is lamivudine safe during pregnancy?

Lamivudine is considered relatively safe in pregnancy when benefits outweigh risks, but always consult your healthcare provider.

Can I take lamivudine with other HIV medications?

Yes, lamivudine is usually used in combination with other antiretroviral drugs. However, do not take it with emtricitabine due to similar actions.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.