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Guaifenesin 20 MG/ML Oral Solution [Mucinex] — RxCUI 669126

RxNorm drug concept · Semantic branded drug
RxCUI 669126 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

RxCUI669126
Official nameGuaifenesin 20 MG/ML Oral Solution [Mucinex]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asMucinex 20 MG/ML Oral Solution; Mucinex 100 MG in 5 mL Oral Solution; Children's Mucinex 20 MG/ML Oral Solution; Mucinex 100 MG per 5 ML Oral Solution
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 Guaifenesin: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • Guaifenesin is what's called an expectorant — it works to thin and loosen the mucus sitting in your chest and airways. That makes it easier to cough the mucus up and out, so instea...
  • What exactly does guaifenesin do for my cough?
  • Guaifenesin is meant for short-term use. If your cough isn't getting better after 7 days, keeps coming back, or shows up alongside a fever, rash, or a headache that won't go away,...
  • How long can I take it before I should call my doctor?
📖 Read our full Guaifenesin guide →

🕸️ Concept Web — How Guaifenesin 20 MG/ML Oral Solution [Mucinex] 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 Guaifenesin 20 MG/ML Oral Solution [Mucinex] RxCUI 669126

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.

    • Guaifenesin 5032
  2. Brand names 1

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

    • Mucinex 352777
  3. Dose forms 9

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

    • Guaifenesin Oral Solution 372358
    • Guaifenesin Oral Liquid Product 1159703
    • Guaifenesin Oral Product 1159704
    • Guaifenesin Oral Solution [Mucinex] 669125
    • Mucinex Oral Liquid Product 1183334
    • Mucinex Oral Product 1183335
    • Oral Solution 316968
    • Oral Liquid Product 1151137
    • +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

  • Guaifenesin 20 MG/ML Oral Solution SCD · 310604
  • Guaifenesin 20 MG/ML SCDC · 316011
  • Guaifenesin Oral Solution SCDF · 372358
  • Guaifenesin Oral Liquid Product SCDG · 1159703
  • Guaifenesin Oral Product SCDG · 1159704

Brand-Name Concepts

  • Guaifenesin 20 MG/ML [Mucinex] SBDC · 669124
  • Guaifenesin Oral Solution [Mucinex] SBDF · 669125
  • Mucinex Oral Liquid Product SBDG · 1183334
  • Mucinex Oral Product SBDG · 1183335
  • Mucinex BN · 352777

📦 FDA Products & Package NDCs

1 product · 1 package NDC
1 package NDC map to RxCUI 669126 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
63824-0537-66 180 mL in 1 BOTTLE (63824-537-66) Mucinex Fast-Max Chest Congestion Honey and Berry Flavor Reckitt Benckiser LLC 2020-06-01
Observed labelers: Reckitt Benckiser 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.