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Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet — RxCUI 2003249

RxNorm drug concept · Semantic clinical drug
RxCUI 2003249 Semantic clinical drug · SCD ● Current RxNorm concept 1 FDA product 1 package NDC Snapshot Jul 14, 2026

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Compiled from public NLM RxNorm and FDA (openFDA NDC directory) data sources. Editorial policy

What you’re looking at: the standardized identity of one medicine, as the U.S. drug-data system sees it. Below — every FDA-listed product, package code, price benchmark, and billing code that maps to it.

🗂️ Key Facts

RxCUI2003249
Official nameLamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known as3TC 300 MG / Tenofovir disoproxil fumarate 300 MG Oral Tablet; lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG (equivalent to tenofovir disoproxil 245 MG) Oral Tablet
FDA products mapped1
Package NDCs mapped1
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

Our pharmacist-built guide to Lamivudine and Tenofovir: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • It treats HIV-1 infection and is always used with other HIV medicines. Cimduo is approved for adults and children weighing at least 35 kg.
  • Take one tablet by mouth once a day, with or without food. Follow your prescriber's directions and the label. Your care team will check your kidneys and test for hepatitis B.
  • The most common are headache, pain, depression, diarrhea and rash. Nausea and dizziness can also occur. Call your doctor if they bother you or don't go away.
  • Please don't stop on your own. If you also have hepatitis B, stopping can cause a severe flare-up of your liver infection. Talk to your prescriber first, and expect close monitorin...
📖 Read our full Lamivudine and Tenofovir guide →

🕸️ Concept Web — How Lamivudine 300 MG / tenofovir disoproxil fumarat... Connects

One RxCUI never lives alone. Follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry — every stop is a real RxNorm concept with its own identifier. Hover or focus any chip for what it means.
This page's concept Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet RxCUI 2003249

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

  1. Ingredients 4

    The active substance itself — no strength, form, or brand attached yet.

    • Lamivudine 68244
    • Tenofovir disoproxil 300195
    • Lamivudine / tenofovir disoproxil 1598388
    • Tenofovir disoproxil fumarate 322248
  2. Brand names 2

    The same medicine's trade names. A brand name alone says nothing about strength or form.

    • Cimduo 2003250
    • Temixys 2123029
  3. Dose forms 17

    The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.

    • Lamivudine / tenofovir disoproxil Oral Tablet 2003248
    • Lamivudine / tenofovir disoproxil fumarate Oral Tablet 2649487
    • Lamivudine / tenofovir disoproxil Oral Product 2003246
    • Lamivudine / tenofovir disoproxil Pill 2003247
    • Lamivudine / tenofovir disoproxil fumarate Oral Product 2663423
    • Lamivudine / tenofovir disoproxil fumarate Pill 2659561
    • Lamivudine / tenofovir disoproxil Oral Tablet [Cimduo] 2003252
    • Lamivudine / tenofovir disoproxil Oral Tablet [Temixys] 2123031
    • +9 more in this family
  4. Clinical & branded drugs 6

    Ingredient + strength + dose form. These are the concepts real FDA products actually carry.

    • Lamivudine 300 MG 350655
    • Tenofovir disoproxil fumarate 300 MG 393334
    • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet [Cimduo] 2003255
    • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet [Temixys] 2123034
    • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG [Cimduo] 2003251
    • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG [Temixys] 2123030

Showing up to 8 concepts per family — 20 of 29 stored related concepts drawn.
These are official RxNorm vocabulary relationships — how concepts name and organize the same medicine. They do not establish therapeutic equivalence or substitutability: two concepts appearing in one web is never a statement that products can be swapped.

🔀 Generic ⇄ Brand Crosswalk

The same medicine has an unbranded (generic) identity and one or more brand-name identities — each with its own RxCUI. This is a naming relationship in RxNorm, not a statement that any two products are substitutable.

Generic (Clinical) Concepts

  • Lamivudine 300 MG SCDC · 350655
  • Tenofovir disoproxil fumarate 300 MG SCDC · 393334
  • Lamivudine / tenofovir disoproxil Oral Tablet SCDF · 2003248
  • Lamivudine / tenofovir disoproxil fumarate Oral Tablet SCDFP · 2649487
  • Lamivudine / tenofovir disoproxil Oral Product SCDG · 2003246
  • Lamivudine / tenofovir disoproxil Pill SCDG · 2003247
  • Lamivudine / tenofovir disoproxil fumarate Oral Product SCDGP · 2663423
  • Lamivudine / tenofovir disoproxil fumarate Pill SCDGP · 2659561

Brand-Name Concepts

  • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet [Cimduo] SBD · 2003255
  • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG Oral Tablet [Temixys] SBD · 2123034
  • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG [Cimduo] SBDC · 2003251
  • Lamivudine 300 MG / tenofovir disoproxil fumarate 300 MG [Temixys] SBDC · 2123030
  • Lamivudine / tenofovir disoproxil Oral Tablet [Cimduo] SBDF · 2003252
  • Lamivudine / tenofovir disoproxil Oral Tablet [Temixys] SBDF · 2123031
  • Lamivudine / tenofovir disoproxil fumarate Oral Tablet [Cimduo] SBDFP · 2656622
  • Lamivudine / tenofovir disoproxil fumarate Oral Tablet [Temixys] SBDFP · 2658587
  • Cimduo Oral Product SBDG · 2003253
  • Cimduo Pill SBDG · 2003254

📦 FDA Products & Package NDCs

1 product · 1 package NDC
1 package NDC map to RxCUI 2003249 in the current snapshot — up to 50 per page. Each linked NDC opens its full package page.
Package NDC Package Brand / generic name Labeler Marketing start
49502-0450-93 1 BOTTLE, PLASTIC in 1 CARTON (49502-450-93) / 30 TABLET, F... CIMDUO Viatris Specialty LLC 2018-06-25
Observed labelers: Viatris Specialty LLC (1) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🗃️ Sources & Limits

Atlas generation902fddb9-e9c1-4004-bf4c-dba4d51037c7
openFDA export observedJul 14, 2026
RxNorm release07/06/2026
Methodology2026-07-full-catalog-v1
  • A shared RxCUI does not prove interchangeability. Products mapped to the same concept are not thereby equivalent or substitutable — equivalence is a separate, product-level determination.
  • Listing here does not establish approval or coverage. Appearing in this snapshot is a data observation, not an FDA approval status or a payer coverage decision.
  • Missing data never means zero. A silent dataset (no price, no billing code, no utilization) means no observation — not that the real-world value is zero.
  • Counts describe the mapping footprint. Product, package, and labeler counts are the FDA-listed mapping footprint in this snapshot — not sales, inventory, availability, or market share.
This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.

Machine-readable JSON

Reference information about drug-concept identifiers and public regulatory data — not medical advice. Talk to your pharmacist or prescriber about your own medication.