Virofovir Tablet (Lamivudine + Tenofovir disoproxil fumarate)
Virofovir Tablet (Lamivudine + Tenofovir Disoproxil Fumarate) is a combination antiretroviral medication used for the effective management of HIV infection. It works by reducing the viral load, improving immune function, and slowing disease progression. This dual-action therapy supports long-term treatment outcomes and is commonly prescribed as part of HIV treatment regimens, helping patients maintain better overall health and quality of life.
Virofovir Tablet Product Overview
Virofovir is a high-potency, fixed-dose combination antiviral medication containing two powerful nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs): Lamivudine and Tenofovir Disoproxil Fumarate (TDF). This dual-action formulation is a cornerstone in modern antiretroviral therapy (ART) for the management of Human Immunodeficiency Virus (HIV-1) infection and is also highly effective in treating chronic Hepatitis B Virus (HBV). By combining two active agents into a single daily tablet, Virofovir significantly simplifies complex treatment regimens and improves long-term patient adherence.
Product Composition
- Active Ingredient 1: Lamivudine (typically 300mg)
- Active Ingredient 2: Tenofovir Disoproxil Fumarate (typically 300mg)
- Formulation: Film-Coated Oral Tablet
- Pharmacological Class: Antiviral / Reverse Transcriptase Inhibitors (NRTIs)
- Mechanism: Competitive inhibition of viral DNA polymerase
Product Specifications
| Feature | Details |
| Generic Name | Lamivudine and Tenofovir Disoproxil Fumarate Tablets |
| Therapeutic Category | Antiretroviral / Anti-HBV Agent |
| Primary Indication | HIV-1 Infection and Chronic Hepatitis B |
| Dosing Schedule | Once daily, consistent timing is essential |
| Storage | Store below 30°C in a dry place; keep container tightly closed |
Mechanism of Action
Virofovir works by directly interrupting the replication cycle of the virus, preventing it from spreading to healthy cells:
- Viral DNA Chain Termination: Both Lamivudine and Tenofovir act as "false building blocks" for viral DNA. When the virus tries to build its DNA using the reverse transcriptase enzyme, it mistakenly incorporates these drugs, which causes the DNA chain to terminate prematurely.
- Reverse Transcriptase Inhibition: By binding to the active site of the viral enzyme, the medication prevents the conversion of viral RNA into DNA, effectively halting the viral life cycle.
- Dual-Pathway Synergy: Using two different NRTIs creates a higher barrier to viral resistance, as the virus would need to develop multiple mutations simultaneously to bypass both active ingredients.
- Hepatitis B Suppression: Tenofovir, in particular, is highly effective at inhibiting the HBV DNA polymerase, significantly reducing the viral load in the liver and preventing progressive organ damage.
Key Benefits of Virofovir Tablet
- Simplified Dosing Regimen: Combines two essential medications into one tablet, reducing "pill burden" and making it easier for patients to maintain a consistent daily schedule.
- High Resistance Barrier: The combination of Lamivudine and Tenofovir is more effective at suppressing viral loads and preventing the emergence of drug-resistant strains than single-agent therapies.
- Dual-Infection Management: An ideal choice for patients co-infected with both HIV and Hepatitis B, as it treats both conditions simultaneously with a single medication.
- Rapid Viral Suppression: Proven to quickly lower the amount of virus in the blood to "undetectable" levels when used as part of a complete ART regimen.
- Proven Safety Profile: Both active ingredients have been used extensively in clinical practice for decades, with well-documented safety and efficacy data.
- Renal and Bone Considerations: While powerful, the TDF component is formulated to provide maximum antiviral activity, though patients are monitored for bone density and kidney function to ensure long-term health.
Virofovir Tablet Precautions
General Safety Guidelines
- Take Virofovir Tablet exactly as prescribed by your doctor for effective HIV management
- Do not skip or double doses; adherence is critical for viral suppression
- Regular monitoring of kidney and liver function is recommended during therapy
- Avoid sudden discontinuation to prevent viral rebound and resistance
Allergy and Sensitivity
- Avoid use if allergic to Lamivudine, Tenofovir Disoproxil Fumarate, or any other ingredients
- Report immediately if you experience rash, itching, swelling, or difficulty breathing
Use in Special Populations
| Population | Precautions |
|---|---|
| Pregnancy | Use only if prescribed; consult your doctor about potential risks |
| Breastfeeding | May pass into breast milk; consult your doctor before use |
| Elderly Patients | Monitor kidney function closely; may be more sensitive to adverse effects |
| Children | Safety and dosage must be determined by pediatric HIV specialists |
Kidney and Liver Considerations
- Use cautiously in patients with pre-existing kidney or liver disease
- Regular kidney function tests and liver function tests are recommended
- Report any unusual fatigue, jaundice, or reduced urine output
Drug and Lifestyle Considerations
- Inform your doctor about all other medications, including antivirals, antibiotics, and herbal supplements
- Maintain a consistent dosing schedule for optimal viral suppression
- Avoid over-the-counter medications without consulting your healthcare provider
Administration and Storage Guidelines
- Take Virofovir Tablet orally, with or without food, as directed
- Swallow the tablet whole; do not crush or chew
- Store in a cool, dry place away from direct sunlight
- Keep out of reach of children
- Do not use expired medication
Virofovir Tablet Usage
Virofovir is a potent antiretroviral combination that requires strict adherence to a daily schedule to maintain viral suppression and prevent the development of drug resistance.
Administration Guidelines
| Feature | Details |
| Route of Administration | Oral (Swallow the tablet whole with water). |
| Standard Dosage | One tablet taken once daily. |
| Timing | Should be taken at the same time every day to ensure consistent blood levels. |
| Food Interaction | May be taken with or without food. |
| Missed Dose | Take within 12 hours of the scheduled time; otherwise, skip and wait for the next dose. |
Important Instructions
Strict Adherence: Missing doses can allow the virus to multiply and develop resistance to the medication. Use tools like pill organizers or phone alarms to ensure 100% compliance.
Kidney Health Monitoring: Because the Tenofovir component is cleared through the kidneys, your healthcare provider will perform regular blood tests (Creatinine/eGFR) to monitor renal function.
Bone Density Awareness: Long-term use may lead to a slight decrease in bone mineral density. Ensure adequate intake of Calcium and Vitamin D as advised by your doctor.
Hydration: Maintaining good hydration is essential to support kidney health while processing this medication.
Avoid NSAIDs: Frequent use of painkillers like Ibuprofen or Naproxen should be avoided, as they can increase the risk of kidney strain when combined with Virofovir.
No Sudden Discontinuation: Stopping this medication abruptly can cause a severe "flare-up" of Hepatitis B. Always consult a specialist before making any changes to your regimen.
Virofovir Tablet Uses
Virofovir is a foundational treatment used in both infectious disease management and hepatology to control viral replication and protect the immune system.
Treatment of HIV-1 Infection: Used as part of a complete antiretroviral therapy (ART) regimen to reduce the viral load and increase CD4 cell counts in adults and pediatric patients.
Chronic Hepatitis B (HBV) Management: Effectively suppresses the Hepatitis B virus, reducing liver inflammation and the risk of long-term complications like cirrhosis or liver cancer.
HIV/HBV Co-infection Therapy: Specifically indicated for patients infected with both viruses, as it provides a streamlined treatment path for both conditions simultaneously.
Pre-Exposure Prophylaxis (PrEP): In specific clinical settings, this combination may be used to reduce the risk of acquiring HIV-1 infection in high-risk individuals.
Prevention of Mother-to-Child Transmission: Used in pregnant women with high viral loads to significantly lower the chance of passing HIV or HBV to the newborn during delivery.
Post-Exposure Prophylaxis (PEP): Utilized in emergency situations following potential exposure to HIV to prevent the virus from establishing a permanent infection.
Immune System Preservation: By keeping the viral load "undetectable," Virofovir helps prevent the opportunistic infections associated with advanced immune deficiency.
Virofovir Tablet Side Effects
General Side Effect Guidelines
- Side effects may vary depending on dosage, duration, and individual sensitivity
- Report any severe or unusual reactions to your healthcare provider immediately
- Regular monitoring of kidney and liver function helps prevent serious complications
Common Side Effects
- Nausea or mild vomiting
- Fatigue or general weakness
- Headache
- Dizziness or lightheadedness
- Mild abdominal discomfort or diarrhea
Serious Side Effects
| Side Effect Category | Symptoms / Warning Signs |
|---|---|
| Kidney-Related | Reduced urine output, swelling of ankles/feet, elevated creatinine |
| Liver-Related | Jaundice (yellowing of eyes/skin), dark urine, persistent fatigue |
| Nervous System | Severe dizziness, confusion, or mood changes |
| Allergic Reactions | Rash, itching, swelling, difficulty breathing |
| Gastrointestinal | Persistent vomiting, severe diarrhea |
Rare but Severe Side Effects
- Acute kidney injury (nephrotoxicity)
- Severe liver dysfunction or hepatotoxicity
- Severe allergic reaction (anaphylaxis)
- Lactic acidosis (rare but serious metabolic complication)
Management and Monitoring
- Monitor kidney and liver function regularly during therapy
- Maintain adherence to prescribed dosage; avoid sudden discontinuation
- Report severe symptoms such as jaundice, swelling, or unusual fatigue immediately
- Consult your doctor before starting any new medications or supplements
Virofovir Tablet FAQs
Q: What is Virofovir Tablet used for?
A: Virofovir is a combination antiviral medication used to treat Human Immunodeficiency Virus (HIV-1) and chronic Hepatitis B (HBV). It works by preventing the virus from multiplying in the body, which helps the immune system recover and prevents the progression of liver disease.
Q: Can Virofovir cure HIV or Hepatitis B?
A: No, Virofovir is not a cure. It is a treatment that suppresses the virus to very low or "undetectable" levels. This allows patients to live longer, healthier lives and significantly reduces the risk of transmitting the virus to others, but the medication must be taken indefinitely.
Q: How should I take Virofovir?
A: The standard dose is one tablet taken once daily. It is critical to take it at the same time every day to maintain a consistent level of medicine in your blood. It can be taken with or without food, though taking it with a meal may help if you experience nausea.
Q: What should I do if I miss a dose?
A: If you remember within 12 hours of your usual time, take the dose immediately. If more than 12 hours have passed, skip the missed dose and take your next one at the regular time. Do not take two tablets at once, as this increases the risk of side effects.
Q: Are there any serious side effects I should watch for?
A: While generally well-tolerated, some patients may experience "lactic acidosis" (a buildup of acid in the blood) or severe liver enlargement. Seek medical help if you feel very weak, have unusual muscle pain, trouble breathing, or yellowing of the skin and eyes (jaundice).
Q: Does Virofovir affect kidney or bone health?
A: The Tenofovir (TDF) component can occasionally affect kidney function or lead to a decrease in bone mineral density. Your doctor will perform regular blood and urine tests to monitor your kidneys and may recommend bone density scans if you are at higher risk for osteoporosis.
Q: Can I stop taking Virofovir if my viral load is "undetectable"?
A: No. You must never stop taking this medication without consulting your doctor. Stopping treatment can cause the virus to rebound quickly and may lead to a severe, life-threatening "flare-up" of Hepatitis B symptoms if you are co-infected.
Q: Does Virofovir interact with other medications?
A: Yes, it can interact with several drugs, including certain anti-inflammatories (NSAIDs like Ibuprofen), other antivirals (like Cidofovir or Adefovir), and some herbal supplements. Always provide your healthcare provider with a complete list of everything you are taking.
Q: Is it safe to take Virofovir during pregnancy?
A: Virofovir is often used during pregnancy to prevent the transmission of HIV or HBV from mother to child. However, it should only be used under the strict guidance of a specialist to ensure the safety of both the mother and the developing baby.
Virofovir Tablet Interactions
General Drug Interaction Guidelines
- Always inform your doctor about all medications, supplements, or herbal products you are taking
- Avoid combining Virofovir Tablet with other medications that may affect kidney or liver function unless prescribed
- Do not start or stop any medication without consulting your healthcare provider
Drugs That May Interact with Virofovir Tablet
| Drug / Drug Class | Interaction Effect |
|---|---|
| Other antiretrovirals (e.g., tenofovir-based regimens) | May increase kidney stress; monitor renal function |
| NSAIDs (e.g., ibuprofen, naproxen) | May increase risk of kidney toxicity when taken concurrently |
| Aminoglycosides | May increase risk of nephrotoxicity |
| Herbal supplements (e.g., St. John’s Wort) | May reduce effectiveness of antiretroviral therapy |
| Hepatotoxic drugs | May increase risk of liver injury; monitor liver function |
Lifestyle and Supplement Interactions
- Avoid high-dose supplements or over-the-counter medications without consulting your doctor
- Maintain adequate hydration to support kidney function
- Inform your healthcare provider about any herbal or nutritional supplements
Monitoring During Interactions
- Monitor kidney and liver function regularly
- Watch for unusual fatigue, jaundice, or swelling
- Contact your doctor immediately if severe symptoms such as reduced urine output or abdominal pain occur
| Manufacturer | : | Sun Pharma, India |
| Trade Name | : | Cimduo |
| Generic Search | : | Lamivudine + Tenofovir disoproxil fumarate |
| Strength | : | 300mg+300mg |
Latest Products
![Avonza Tablet[Lamivudine (300mg) + Tenofovir disoproxil fumarate (300mg) + Efavirenz (400mg)]](https://www.onlinegenericmedicine.com/media/catalog/product/cache/638ca623eeb5b5e05f037b35f674d6cb/u/n/untitled_design_28_1__1.jpg)
![Vianca Tablet[Lamivudine (300mg) + Tenofovir disoproxil fumarate (300mg) + Efavirenz (400mg)]](https://www.onlinegenericmedicine.com/media/catalog/product/cache/638ca623eeb5b5e05f037b35f674d6cb/u/n/untitled_design_29_1__1.jpg)