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Letermovir 240 MG Oral Tablet — RxCUI 1988666

RxNorm drug concept · Semantic clinical drug
RxCUI 1988666 Semantic clinical drug · SCD ● Current RxNorm concept 6 FDA products 8 package NDCs 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

RxCUI1988666
Official nameLetermovir 240 MG Oral Tablet
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
FDA products mapped6
Package NDCs mapped8
Reported Medicaid activity (SDUD)4,462 prescriptions · 26 state & territory Medicaid programs · latest period Q4 2025
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist
  • Prevymis is an antiviral used to prevent a virus called CMV (cytomegalovirus) from becoming active and causing serious illness after your transplant. CMV is a very common virus tha...
  • What exactly is this medication for? Why was I given it after my transplant?
  • Good news — you can take the Prevymis tablet with or without food, whichever is easier for you. Just make sure to swallow the tablet whole and don't crush it. If you've been given...
  • Can I take the tablet with food, or do I need to take it on an empty stomach?
📖 Read our full Letermovir guide →

🕸️ Concept Web — How Letermovir 240 MG Oral Tablet 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 Letermovir 240 MG Oral Tablet RxCUI 1988666

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

  1. Ingredients 1

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

    • Letermovir 1988648
  2. Brand names 1

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

    • Prevymis 1988653
  3. Dose forms 9

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

    • Letermovir Oral Tablet 1988665
    • Letermovir Oral Product 1988663
    • Letermovir Pill 1988664
    • Letermovir Oral Tablet [Prevymis] 1988668
    • Prevymis Oral Product 1988669
    • Prevymis Pill 1988670
    • Oral Tablet 317541
    • Oral Product 1151131
    • +1 more in this family
  4. Clinical & branded drugs 3

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

Showing up to 8 concepts per family — 13 of 14 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

  • Letermovir 240 MG SCDC · 1988662
  • Letermovir Oral Tablet SCDF · 1988665
  • Letermovir Oral Product SCDG · 1988663
  • Letermovir Pill SCDG · 1988664

Brand-Name Concepts

  • Letermovir 240 MG Oral Tablet [Prevymis] SBD · 1988671
  • Letermovir 240 MG [Prevymis] SBDC · 1988667
  • Letermovir Oral Tablet [Prevymis] SBDF · 1988668
  • Prevymis Oral Product SBDG · 1988669
  • Prevymis Pill SBDG · 1988670
  • Prevymis BN · 1988653

📦 FDA Products & Package NDCs

6 products · 8 package NDCs
8 package NDCs map to RxCUI 1988666 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
00006-3075-02 4 DOSE PACK in 1 CARTON (0006-3075-02) / 7 TABLET, FILM COA... PREVYMIS Merck Sharp & Dohme LLC 2017-11-08
00006-3075-04 14 BLISTER PACK in 1 CARTON (0006-3075-04) / 1 TABLET, FILM... PREVYMIS Merck Sharp & Dohme LLC 2017-11-08
00006-3076-02 4 DOSE PACK in 1 CARTON (0006-3076-02) / 7 TABLET, FILM COA... PREVYMIS Merck Sharp & Dohme LLC 2017-11-08
00006-3076-04 14 BLISTER PACK in 1 CARTON (0006-3076-04) / 1 TABLET, FILM... PREVYMIS Merck Sharp & Dohme LLC 2017-11-08
00006-5003-01 1 VIAL, SINGLE-DOSE in 1 CARTON (0006-5003-01) / 12 mL in 1... PREVYMIS Merck Sharp & Dohme LLC 2017-11-08
00006-5004-01 1 VIAL, SINGLE-DOSE in 1 CARTON (0006-5004-01) / 24 mL in 1... PREVYMIS Merck Sharp & Dohme LLC 2017-11-08
00006-5085-01 30 PACKET in 1 CARTON (0006-5085-01) / 48 PELLET in 1 PACKE... PREVYMIS Merck Sharp & Dohme LLC 2024-08-30
00006-5086-01 30 PACKET in 1 CARTON (0006-5086-01) / 8 PELLET in 1 PACKET PREVYMIS Merck Sharp & Dohme LLC 2024-08-30
Observed labelers: Merck Sharp & Dohme LLC (8) — 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.