Lamivir HBV 100mg – Affordable Epivir Alternative for HIV & Hepatitis B

Name: Lamivir HBV 100 mg
Brand: Epivir
SKU: 572
Availability: InStock

Lamivir 100mg tablets are included under the antiretroviral drug that is effective against RNA viruses like Human Immunodeficiency Virus. Doctors prescribe this medication as a part of combination therapy for the treatment of HIV infection. The tablets can prevent or slow down the ability of HIV to replicate so that the immune system gets the strength to recover, lowering the risk of disease progression. It is important to note that this medication does not kill the virus already available in the CD4 cells or prevent the spread of the infection to others who come in contact.

What is Lamivir medication used for?

Lamivir 100mg medication is used to treat a viral infection like HIV in the people from different ages. It’s not used alone, but as a part of combination therapy. It’s widely recommended treatment regimen known as highly active antiretroviral therapy. Since viral infection affects the immune system by weakening the cells called CD4 cells, Lamivir tablets 100 mg can prevent or reduce HIV infection to replicate by lowering viral load. So CD4 cells can increase and improve the immune system. This medication can only reduce the risk of disease progression, but not cure to spread to other people.

Precautions

What medications interact with Lamivir?

Inform your physician about all the mdicines that you are taking during the treatment of Lamivudine. Also, ask your physician about the complete list of drugs that may interact with Lamivir 100 mg.

When should Lamivir not be taken?

Experts suggest to avoid this medication in the cases of:

Allergic to Lamivudine or any ingredients in Lamivir
Pregnancy or breastfeeding
Living with kidney or liver disease
Taking any other retroviral medication containing Lamivudine
Other medicines that may interact with Lamivir
Excessive alcoholic

You have to make sure to tell about your medical history if you have had.

Dosage Instructions

Side Effects

What are the side effects of Lamivir?

There are some common side effects of Lamivir 100 mg tablets such as:

Rash
Hair loss
Headache
Nausea
Loose stools of diarrhea
Difficulty sleeping
Arthralgia (joint pain)
Muscle pain (spasm, shaking, weakness)
Fatigue
Vomiting
Upper abdominal pain
Malaise
Fever

Apart from these, a more serious side effect of this medication is damage to the liver and the occurrence of lactic acidosis that may cause pancreatitis, liver failure, or renal failure. Doctors refer small meals, sugar-free candy and other precautions to reduce the possibility of these side effects.

How to Use

How should Lamivir be used?

Usually, this medicine is taken once or twice daily. You can Lamivir tablets with a glass of water, with or without food. The ideal dose of Lamivir medication depends on condition of the patient and it should be taken in combination with other HIV medication. One has to continue taking Lamivir tablets 100mg for as long as recommended by the doctor.

Missed dose of Lamivirs

If you have missed a dose of Lamivir tablets 100mg then take it as soon as you remember, but don’t increase the number of tablets to make up the damage of missed doses.

How should Lamivir be stored?

You should store Lamivir tablets at room temperature, below 25°C, in a cool and dry place. Keep it beyond the reach of children and pet.

Infographics

FAQ

What is Lamivir HBV 100mg used for?

Lamivir HBV 100mg contains lamivudine 100mg — an antiretroviral nucleoside reverse transcriptase inhibitor (NRTI) specifically formulated and dosed for chronic hepatitis B virus (HBV) infection. Lamivudine 100mg/day suppresses HBV DNA replication by inhibiting HBV reverse transcriptase, leading to reduction in viral load, improvement in liver function tests, and histological improvement in liver inflammation. It is used for chronic hepatitis B in adults with compensated liver disease and evidence of active viral replication.

How does Lamivir HBV 100mg suppress hepatitis B?

Lamivudine is a cytidine nucleoside analogue that is phosphorylated intracellularly to its active triphosphate form (3TC-TP). 3TC-TP competes with natural cytidine triphosphate for incorporation into the HBV DNA chain. When incorporated, it terminates DNA chain elongation — halting HBV replication. With suppressed viral replication, HBV DNA levels decline (often to undetectable), HBe antigen may seroconvert, and liver inflammation improves. However, lamivudine does not eliminate covalently closed circular DNA (cccDNA) from infected hepatocytes — HBV is suppressed, not cured, requiring long-term or lifelong treatment.

How should Lamivir HBV 100mg be taken?

Lamivir HBV 100mg is taken as one tablet once daily with or without food. Consistent daily dosing is essential to maintain HBV suppression — missing doses allows viral rebound. Treatment duration: at least 1 year; HBeAg-positive patients may discontinue after achieving HBeAg seroconversion, undetectable HBV DNA, and consolidation treatment; HBeAg-negative patients require longer-term or indefinite treatment. Regular liver function tests and HBV DNA monitoring (every 3–6 months) are mandatory to assess response and detect resistance early.

What is the risk of lamivudine resistance in hepatitis B treatment?

Lamivudine resistance is the major limitation — resistance develops in up to 70% of patients by year 4 of therapy due to the YMDD mutation in HBV polymerase. Resistance manifests as viral rebound (rising HBV DNA after initial suppression). When resistance is detected, switch to a more potent agent with higher resistance barrier: tenofovir disoproxil fumarate (TDF) or tenofovir alafenamide (TAF) — both are preferred first-line agents in current guidelines due to their significantly higher genetic resistance barriers. Entecavir 1mg daily (instead of 0.5mg) is an alternative for lamivudine-experienced patients.

Is Lamivir HBV 100mg safe in patients with liver cirrhosis?

Lamivudine 100mg is used in HBV-related compensated cirrhosis. In decompensated cirrhosis (ascites, jaundice, coagulopathy, encephalopathy), lamivudine can be used but requires careful hepatologist supervision — viral suppression can stabilise or improve liver function. In severe hepatic impairment (Child-Pugh C), current guidelines prefer tenofovir or entecapir over lamivudine due to lower resistance risk. Dose adjustment for hepatic impairment alone is not required (lamivudine is renally cleared), but renal function often deteriorates with advanced cirrhosis — requiring dose reduction.

What drug interactions affect Lamivir HBV 100mg?

Lamivudine HBV has few significant interactions at 100mg. Trimethoprim reduces lamivudine renal secretion — increases lamivudine levels; generally not clinically significant at 100mg dose. Zalcitabine (ddC) competes with lamivudine intracellularly — not used together (both are now largely obsolete). Note: the 100mg HBV dose and 150mg HIV dose have different interaction considerations; do not confuse. Emtricitabine (FTC) shares the same mechanism and cross-resistance profile with lamivudine — they should never be combined. Renal function monitoring is important as lamivudine is renally cleared.

How does Lamivir HBV 100mg compare to entecavir for hepatitis B?

Lamivudine 100mg/day and entecavir 0.5mg/day are both oral nucleoside/tide analogues for chronic hepatitis B. Entecavir is significantly superior: higher HBV DNA suppression rates (94% vs. 60% undetectable at year 1), superior histological improvement, and a much higher genetic resistance barrier (0.2% resistance at year 5 vs. 70% for lamivudine). Current guidelines (EASL, AASLD) recommend tenofovir or entecavir as preferred first-line agents over lamivudine. Lamivudine is reserved for situations where cost is prohibitive or in short-term therapy contexts.

Is Lamivir HBV 100mg the same as Epivir-HBV?

Yes. Lamivir HBV 100mg and branded Epivir-HBV both contain lamivudine 100mg in bioequivalent formulations specifically dosed for hepatitis B treatment. They are distinct from the 150mg HIV formulation (Epivir 150mg). Lamivir HBV is the generic alternative providing the same hepatitis B viral suppression at significantly lower cost, which is important given the need for long-term or indefinite treatment.

Where can I buy Lamivir HBV 100mg online?

Lamivir HBV 100mg is available at PremiumRxDrugs.com, shipping to the USA, UK, Australia, and worldwide. Their licensed pharmacy provides authentic manufacturer-sourced lamivudine at competitive prices. Free shipping on qualifying orders, discreet packaging, and easy prescription management support long-term hepatitis B viral suppression therapy.

Can I order Lamivir HBV 100mg from PremiumRxDrugs for international delivery?

Yes. PremiumRxDrugs.com ships Lamivir HBV 100mg to the USA, UK, Australia, and many other countries. Their genuine manufacturer-verified hepatitis B medications, competitive pricing, and free worldwide shipping on qualifying orders make them a reliable international source for HBV antiviral therapy.

What side effects does Lamivir HBV 100mg cause?

Lamivudine 100mg is generally well tolerated. Common: headache, nausea, fatigue, and upper respiratory tract symptoms — typically mild. Rare but serious: lactic acidosis and severe hepatomegaly with steatosis (a nucleoside analogue class warning — more common with older NRTIs like stavudine; very rare with lamivudine). Exacerbations of hepatitis B after stopping treatment: HBV rebounds sharply when lamivudine is discontinued — monitor liver function tests for 4 months after stopping. Pancreatitis is rare but reported in HIV-infected paediatric patients.

What monitoring is required during Lamivir HBV 100mg therapy?

Required monitoring: HBV DNA every 3–6 months (to assess suppression and detect resistance); liver function tests (ALT/AST) every 3–6 months; HBeAg/anti-HBe status every 6–12 months (to determine treatment duration); HBsAg annually (clearance is rare but indicates optimal response); renal function (eGFR) every 6–12 months (dose reduction if eGFR <50); and resistance testing (genotypic) if HBV DNA rebounds on therapy. Abrupt discontinuation must be avoided — arrange uninterrupted supply for patients on long-term therapy.

SKU	572
Generic For	Epivir
Strength	100 mg
Active Ingredient	Lamivudine