Lamivudina (Lamivudine) API Manufacturers & Suppliers
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Lamivudine | CAS No: 134678-17-4 | GMP-certified suppliers
A medication that supports effective management of HIV infection and chronic hepatitis B, offering reliable antiviral coverage for diverse treatment strategies across key global markets.
Therapeutic categories
Primary indications
- For the treatment of HIV infection and chronic hepatitis B (HBV)
Product Snapshot
- Lamivudine is an oral small‑molecule API supplied in multiple tablet and solution presentations
- It is used in antiviral formulations for HIV infection and chronic hepatitis B
- It holds approved status in the US, EU, and Canada, with some investigational listings in certain markets
Clinical Overview
Lamivudine exhibits pharmacologic activity as a nucleoside reverse transcriptase inhibitor. After intracellular uptake, it undergoes sequential phosphorylation to its active metabolite, lamivudine triphosphate. This metabolite competes with natural deoxycytidine triphosphate for incorporation into viral DNA by HIV reverse transcriptase and HBV DNA polymerase. Because lamivudine lacks a 3'-hydroxyl group, its incorporation results in chain termination and interruption of viral DNA replication.
Absorption following oral dosing is rapid, with high bioavailability. The compound displays low plasma protein binding and distributes into extracellular fluids. Lamivudine is not extensively metabolized and is eliminated primarily unchanged through renal excretion via glomerular filtration and active tubular secretion, involving transporters such as OAT1 and OCT2. Dose adjustments are required in renal impairment to mitigate drug accumulation.
Lamivudine is generally well tolerated, though mitochondrial toxicity is a class consideration for nucleoside analogues. Reported safety concerns include potential exacerbation of hepatitis after discontinuation in HBV-infected individuals and rare instances of lactic acidosis with hepatic steatosis. Drug interactions are mainly related to transporter-mediated competition rather than extensive metabolic pathways.
Lamivudine is widely incorporated into fixed-dose antiretroviral combinations used globally. For API procurement, quality considerations include controlling stereochemical purity, impurity profiles consistent with ICH guidance, and verification of compliance with pharmacopeial specifications to support reliable formulation performance and regulatory acceptance.
Identification & chemistry
| Generic name | Lamivudine |
|---|---|
| Molecule type | Small molecule |
| CAS | 134678-17-4 |
| UNII | 2T8Q726O95 |
| DrugBank ID | DB00709 |
Pharmacology
| Summary | Lamivudine is a nucleoside reverse transcriptase inhibitor that targets HIV‑1 reverse transcriptase and HBV polymerase to disrupt viral DNA synthesis. After intracellular phosphorylation to lamivudine triphosphate, it competes with natural nucleosides for incorporation into viral DNA and induces chain termination. Its antiviral activity arises from inhibition of nucleic acid elongation in HIV and HBV. |
|---|---|
| Mechanism of action | Lamivudine is a synthetic nucleoside analogue and is phosphorylated intracellularly to its active 5'-triphosphate metabolite, lamivudine triphosphate (L-TP). This nucleoside analogue is incorporated into viral DNA by HIV reverse transcriptase and HBV polymerase, resulting in DNA chain termination. |
| Pharmacodynamics | Lamivudine is a nucleoside reverse transcriptase inhibitor (NRTI) with activity against Human Immunodeficiency Virus Type 1 (HIV-1) and hepatitis B (HBV) to disrupt viral DNA synthesis. When phosphorylated, lamivudine can form active metabolites that compete for incorporation into viral DNA. Via DNA incorporation, lamivudine metabolites competitively inhibit the activity of the HIV reverse transcriptase enzyme and act as a chain terminator of DNA synthesis. Due to the lack of a 3'-OH group, incorporated nucleoside analogues prevent the formation of a 5' to 3' phosphodiester linkage that is essential for DNA chain elongation. |
Targets
| Target | Organism | Actions |
|---|---|---|
| Reverse transcriptase/RNaseH | Human immunodeficiency virus 1 | inhibitor |
| DNA | Humans | binder |
| Protein P | HBV-F | inhibitor |
ADME / PK
| Absorption | Lamivudine was rapidly absorbed after oral administration in HIV-infected patients. Absolute bioavailability in 12 adult patients was 86% ± 16% (mean ± SD) for the 150-mg tablet and 87% ± 13% for the oral solution. The peak serum lamivudine concentration (Cmax) was 1.5 ± 0.5 mcg/mL when an oral dose of 2 mg/kg twice a day was given to HIV-1 patients. When given with food, absorption is slower, compared to the fasted state. |
|---|---|
| Half-life | 5 to 7 hours (healthy or HBV-infected patients) |
| Protein binding | <36% bound to plasma protein. |
| Metabolism | Metabolism of lamivudine is a minor route of elimination. In man, the only known metabolite of lamivudine is the trans-sulfoxide metabolite. This biotransformation is catalyzed by sulfotransferases. |
| Route of elimination | The majority of lamivudine is eliminated unchanged in urine by active organic cationic secretion. 5.2% ± 1.4% (mean ± SD) of the dose was excreted as the trans-sulfoxide metabolite in the urine. Lamivudine is excreted in human breast milk and into the milk of lactating rats. |
| Volume of distribution | Apparent volume of distribution, IV administration = 1.3 ± 0.4 L/kg. Volume of distribution was independent of dose and did not correlate with body weight. |
| Clearance | * Renal clearance = 199.7 ± 56.9 mL/min [300 mg oral dose, healthy subjects] * Renal clearance = 280.4 ± 75.2 mL/min [single IV dose, HIV-1-infected patients] * Total clearance = 398.5 ± 69.1 mL/min [HIV-1-infected patients] |
Formulation & handling
- Lamivudine is a small‑molecule, highly water‑soluble nucleoside analogue suitable for conventional oral solid and liquid formulations.
- Solution and syrup forms are straightforward to prepare due to good aqueous solubility, with no special pH‑dependent solubility constraints.
- Food has minimal impact on exposure, so formulations do not require food‑specific release or timing considerations.
Regulatory status
| Lifecycle | The API shows a mature market position in Canada and the EU, where key patents have long expired, while U.S. exclusivity extends into 2030 due to a later‑expiring patent. Overall, the product is largely in a post‑exclusivity phase outside the United States, with remaining protection shaping its U.S. lifecycle. |
|---|
| Markets | Canada, US, EU |
|---|
Supply Chain
| Supply chain summary | Lamivudine is produced by a small number of originator companies, with ViiV Healthcare and GlaxoSmithKline responsible for primary API and branded product development, while a wide network of repackagers supports downstream distribution in North America. Branded products are established in the US, EU, and Canada, indicating broad global availability. Most core substance patents have expired, and although one later‑expiring U.S. patent remains, the overall landscape supports existing and widespread generic competition. |
|---|
Safety
| Toxicity | The most common reported adverse reactions (incidence ≥15%) in adults were headache, nausea, malaise and fatigue, nasal signs and symptoms, diarrhea, and cough. |
|---|
- Occupational exposure may pose risks of CNS and gastrointestinal effects, including headache, nausea, malaise, fatigue, diarrhea, and respiratory irritation
- Bulk‑powder handling should minimize inhalation or dermal contact due to reported nasal signs/symptoms and cough associated with exposure
- Implement appropriate containment and ventilation controls for materials with systemic tolerability profiles involving multiple organ systems
Lamivudine is a type of Anti-HIV
The Anti-HIV category of pharmaceutical APIs comprises a range of active pharmaceutical ingredients (APIs) specifically designed to combat the human immunodeficiency virus (HIV). These APIs play a critical role in the development and production of antiretroviral drugs, which are used to treat HIV infections and prevent the progression to acquired immunodeficiency syndrome (AIDS).
Anti-HIV APIs work by targeting various stages of the HIV life cycle, inhibiting viral replication and reducing the viral load in the body. Some commonly used APIs in this category include nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs), and integrase inhibitors (INIs).
NRTIs, such as tenofovir and emtricitabine, act by blocking the reverse transcriptase enzyme, an essential component in the replication of the virus. NNRTIs, such as efavirenz and nevirapine, bind to the reverse transcriptase enzyme, preventing its proper functioning. PIs, like ritonavir and atazanavir, inhibit the protease enzyme, crucial for viral maturation and assembly. INIs, such as raltegravir and dolutegravir, target the integrase enzyme, impeding viral integration into the host's DNA.
These APIs are carefully synthesized and undergo rigorous quality testing to ensure their safety, efficacy, and compliance with regulatory standards. Pharmaceutical companies utilize these APIs as key building blocks to formulate antiretroviral medications, which are then prescribed to individuals living with HIV/AIDS worldwide.
Overall, the Anti-HIV API category plays a vital role in the ongoing battle against HIV/AIDS, offering effective treatment options and improved quality of life for patients affected by this challenging condition.
Lamivudine API manufacturers & distributors
Compare qualified Lamivudine API suppliers worldwide. We currently have 22 companies offering Lamivudine API, with manufacturing taking place in 5 different countries. Use the table below to review supplier type, countries of origin, certifications, product portfolio and GMP audit availability.
| Supplier | Type | Country | Product origin | Certifications | Portfolio |
|---|---|---|---|---|---|
| Anhui Biochem United Phar... | Producer | China | China | CoA, GMP, USDMF, WHO-GMP | 6 products |
| Arch Pharmalabs | Producer | India | Unknown | CEP, CoA, FDA, GMP | 19 products |
| Arshine Pharmaceutical Co... | Distributor | China | China | BSE/TSE, CEP, CoA, FDA, GMP, MSDS, USDMF | 176 products |
| Cipla | Producer | India | India | CEP, CoA, FDA, GMP, USDMF, WC | 164 products |
| Hangzhou Coben Pharmaceut... | Producer | China | China | CoA, GMP, ISO9001 | 7 products |
| Hetero Drugs | Producer | India | India | CoA, GMP, WC | 98 products |
| Hetero Labs | Producer | India | India | CEP, CoA, FDA, GMP, JDMF, USDMF, WC | 90 products |
| Laurus Labs | Producer | India | India | CEP, CoA, GMP, JDMF, USDMF, WC | 50 products |
| LGM Pharma | Distributor | United States | World | BSE/TSE, CEP, CoA, GMP, MSDS, USDMF | 441 products |
| Lupin | Producer | India | India | CoA, GMP, USDMF, WC | 155 products |
| Mylan | Producer | India | India | CEP, CoA, FDA, GMP, USDMF, WC | 201 products |
| Pen Tsao Chemical Industr... | Producer | Germany | China | CoA | 18 products |
| SETV Global | Producer | India | India | CoA, FDA, GMP | 515 products |
| Shandong Zhanhua Yonghao | Producer | China | China | CoA | 10 products |
| Shanghai Acebright | Producer | China | China | CoA | 23 products |
| Shanghai Desano Chem. | Producer | China | China | CEP, CoA, FDA, USDMF | 22 products |
| Shaoxing Hantai Pharma | Distributor | China | China | CoA | 162 products |
| Shijiazhuang Lonzeal | Producer | China | China | CoA, USDMF | 1 products |
| Signa | Producer | Mexico | Mexico | CoA, USDMF | 42 products |
| Sinoway industrial Co.,Lt... | Distributor | China | China | CoA, GMP, ISO9001, MSDS, USDMF | 757 products |
| Sun Pharma | Producer | India | India | CoA, GMP, WC | 219 products |
| Wisdom Pharma | Producer | China | China | CoA, USDMF | 12 products |
When sending a request, specify which Lamivudine API quality you need: for example EP (Ph. Eur.), USP, JP, BP, or another pharmacopoeial standard, as well as the required grade (base, salt, micronised, specific purity, etc.).
Use the list above to find high-quality Lamivudine API suppliers. For example, you can select GMP, FDA or ISO certified suppliers. Visit our help page to learn more about sourcing APIs via Pharmaoffer.
