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Mechlorethamine 0.00016 MG/MG Topical Gel [Valchlor] — RxCUI 1437713

RxNorm drug concept · Semantic branded drug
RxCUI 1437713 Semantic branded drug · SBD ● 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

RxCUI1437713
Official nameMechlorethamine 0.00016 MG/MG Topical Gel [Valchlor]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asValchlor 0.016 % Topical Gel; Valchlor 0.00016 MG/MG Topical Gel
FDA products mapped1
Package NDCs mapped1
Reported Medicaid activity (SDUD)118 prescriptions · 2 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 Mechlorethamine Topical: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • Valchlor is treating a type of skin lymphoma called mycosis fungoides-type cutaneous T-cell lymphoma. It's a cancer that involves abnormal immune cells collecting in the skin. The...
  • What is Valchlor actually treating on my skin?
  • The most common side effect is skin irritation — redness, swelling, itching, or blistering right where you apply the gel. Some people also develop skin darkening or a bacterial ski...
  • What side effects should I expect, and when should I call my doctor?
📖 Read our full Mechlorethamine Topical guide →

🕸️ Concept Web — How Mechlorethamine 0.00016 MG/MG Topical Gel [Valch... 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 Mechlorethamine 0.00016 MG/MG Topical Gel [Valchlor] RxCUI 1437713

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.

    • Mechlorethamine 6674
  2. Brand names 1

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

    • Valchlor 1437556
  3. Dose forms 6

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

    • Mechlorethamine Topical Gel 1437554
    • Mechlorethamine Topical Product 1158655
    • Mechlorethamine Topical Gel [Valchlor] 1437558
    • Valchlor Topical Product 1437559
    • Topical Gel 346286
    • Topical Product 1151122
  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 — 11 of 11 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

Brand-Name Concepts

  • Mechlorethamine 0.00016 MG/MG [Valchlor] SBDC · 1437712
  • Mechlorethamine Topical Gel [Valchlor] SBDF · 1437558
  • Valchlor Topical Product SBDG · 1437559
  • Valchlor BN · 1437556

📦 FDA Products & Package NDCs

1 product · 1 package NDC
1 package NDC map to RxCUI 1437713 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
69639-0120-01 1 TUBE in 1 CARTON (69639-120-01) / 60 g in 1 TUBE VALCHLOR Helsinn Therapeutics (U.S.), Inc. 2018-11-08
Observed labelers: Helsinn Therapeutics (U.S.), Inc. (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.