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Doxylamine succinate 25 MG Oral Tablet [Zzzquil Ultra] — RxCUI 2548540

RxNorm drug concept · Semantic branded drug
RxCUI 2548540 Semantic branded drug · SBD ● Current RxNorm concept 3 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

RxCUI2548540
Official nameDoxylamine succinate 25 MG Oral Tablet [Zzzquil Ultra]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asZzzquil Ultra 25 MG Oral Tablet
FDA products mapped3
Package NDCs mapped8
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist
  • It depends on the product. Sleep-aid tablets help you fall asleep more easily. Some NyQuil and other liquid or syrup products relieve hay fever and upper respiratory allergy sympto...
  • Adults and children 12 and over take one tablet about 30 minutes before bed, once daily or as your doctor directs. Take it only at bedtime. These tablets are not for children under...
  • No. The label says to avoid alcohol while using doxylamine. Also don’t drive or run machinery.
  • Yes, if you have emphysema or chronic bronchitis, glaucoma, or trouble urinating from an enlarged prostate. Also check if you take sedatives, other sleep aids, or other antihistami...
📖 Read our full Doxylamine guide →

🕸️ Concept Web — How Doxylamine succinate 25 MG Oral Tablet [Zzzquil... 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 Doxylamine succinate 25 MG Oral Tablet [Zzzquil Ultra] RxCUI 2548540

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

  1. Ingredients 2

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

    • Doxylamine 3642
    • Doxylamine succinate 23665
  2. Brand names 1

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

    • Zzzquil Ultra 2548535
  3. Dose forms 13

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

    • Doxylamine Oral Tablet 371968
    • Doxylamine succinate Oral Tablet 2645899
    • Doxylamine Oral Product 1160785
    • Doxylamine Pill 1160786
    • Doxylamine succinate Oral Product 2659657
    • Doxylamine succinate Pill 2662572
    • Doxylamine Oral Tablet [Zzzquil Ultra] 2548537
    • Doxylamine succinate Oral Tablet [Zzzquil Ultra] 2656918
    • +5 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 — 14 of 19 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

  • Doxylamine succinate 25 MG Oral Tablet SCD · 1101446
  • Doxylamine succinate 25 MG SCDC · 1101445
  • Doxylamine Oral Tablet SCDF · 371968
  • Doxylamine succinate Oral Tablet SCDFP · 2645899
  • Doxylamine Oral Product SCDG · 1160785
  • Doxylamine Pill SCDG · 1160786
  • Doxylamine succinate Oral Product SCDGP · 2659657
  • Doxylamine succinate Pill SCDGP · 2662572

Brand-Name Concepts

  • Doxylamine succinate 25 MG [Zzzquil Ultra] SBDC · 2548536
  • Doxylamine Oral Tablet [Zzzquil Ultra] SBDF · 2548537
  • Doxylamine succinate Oral Tablet [Zzzquil Ultra] SBDFP · 2656918
  • Zzzquil Ultra Oral Product SBDG · 2548538
  • Zzzquil Ultra Pill SBDG · 2548539
  • Zzzquil Ultra BN · 2548535

📦 FDA Products & Package NDCs

3 products · 8 package NDCs
8 package NDCs map to RxCUI 2548540 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
66715-6451-03 3 POUCH in 1 CARTON (66715-6451-3) / 1 TABLET in 1 POUCH ZzzQuil ULTRA, Travel BASIX Lil' Drug Store Products, Inc. 2022-10-11
66715-9751-02 2 POUCH in 1 CARTON (66715-9751-2) / 1 TABLET in 1 POUCH ZzzQuil ULTRA, Lil Drug Store Lil' Drug Store Products, Inc. 2025-09-30
66715-9751-03 3 POUCH in 1 CARTON (66715-9751-3) / 1 TABLET in 1 POUCH ZzzQuil ULTRA, Lil Drug Store Lil' Drug Store Products, Inc. 2024-01-26
69423-0902-01 1 TABLET in 1 POUCH (69423-902-01) Vicks ZzzQuil Ultra The Procter & Gamble Manufacturing Company 2023-10-16
69423-0902-12 1 BLISTER PACK in 1 CARTON (69423-902-12) / 12 TABLET in 1... Vicks ZzzQuil Ultra The Procter & Gamble Manufacturing Company 2021-03-01
69423-0902-24 2 BLISTER PACK in 1 CARTON (69423-902-24) / 12 TABLET in 1... Vicks ZzzQuil Ultra The Procter & Gamble Manufacturing Company 2021-03-01
69423-0902-32 32 POUCH in 1 CARTON (69423-902-32) / 1 TABLET in 1 POUCH Vicks ZzzQuil Ultra The Procter & Gamble Manufacturing Company 2023-10-16
69423-0902-48 4 BLISTER PACK in 1 CARTON (69423-902-48) / 12 TABLET in 1... Vicks ZzzQuil Ultra The Procter & Gamble Manufacturing Company 2021-03-01
Observed labelers: The Procter & Gamble Manufacturing Company (5) · Lil' Drug Store Products, Inc. (3) — 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.