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Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet — RxCUI 1536833

RxNorm drug concept · Semantic clinical drug
RxCUI 1536833 Semantic clinical drug · SCD ● Current RxNorm concept 5 FDA products 5 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

RxCUI1536833
Official nameAspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known asASA 500 MG / Citric Acid 1000 MG / NaHCO3 1985 MG Effervescent Oral Tablet
FDA products mapped5
Package NDCs mapped5
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist
  • Great question. A rectal suppository gets the medication into your system through the lining of the rectum rather than your stomach. This can be helpful if you're having trouble sw...
  • Why would someone use a rectal suppository instead of just taking aspirin by mouth?
  • First, check that the foil or plastic packet is fully sealed and undamaged before you open it — don't use it if it looks like it's already been opened. Once you open it, insert the...
  • This is really important: aspirin — including the suppository form — should NOT be given to children or teenagers who have or are recovering from chicken pox or the flu. There is a...
📖 Read our full Aspirin Rectal guide →

🕸️ Concept Web — How Aspirin 500 MG / citric acid 1000 MG / sodium bi... 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 Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet RxCUI 1536833

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.

    • Aspirin 1191
    • Citric acid 21183
    • Sodium bicarbonate 36676
    • Aspirin / citric acid / sodium bicarbonate 689524
  2. Brand names 1

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

    • Alka-Seltzer 17315
  3. Dose forms 6

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

    • Aspirin / citric acid / sodium bicarbonate Effervescent Oral Tablet 1536466
    • Aspirin / citric acid / sodium bicarbonate Oral Product 1153551
    • Aspirin / citric acid / sodium bicarbonate Effervescent Oral Tablet [Alka-Seltzer] 1536679
    • Alka-Seltzer Oral Product 1175547
    • Effervescent Oral Tablet 1535727
    • Oral Product 1151131
  4. Clinical & branded drugs 5

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

    • Aspirin 500 MG 315424
    • Citric acid 1000 MG 1536464
    • Sodium bicarbonate 1985 MG 1536832
    • Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet [Alka-Seltzer] 1536835
    • Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG [Alka-Seltzer] 1536834

Showing up to 8 concepts per family — 16 of 16 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

  • Aspirin 500 MG SCDC · 315424
  • Citric acid 1000 MG SCDC · 1536464
  • Sodium bicarbonate 1985 MG SCDC · 1536832
  • Aspirin / citric acid / sodium bicarbonate Effervescent Oral Tablet SCDF · 1536466
  • Aspirin / citric acid / sodium bicarbonate Oral Product SCDG · 1153551

Brand-Name Concepts

  • Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet [Alka-Seltzer] SBD · 1536835
  • Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG [Alka-Seltzer] SBDC · 1536834
  • Aspirin / citric acid / sodium bicarbonate Effervescent Oral Tablet [Alka-Seltzer] SBDF · 1536679
  • Alka-Seltzer Oral Product SBDG · 1175547
  • Alka-Seltzer BN · 17315

📦 FDA Products & Package NDCs

5 products · 5 package NDCs
5 package NDCs map to RxCUI 1536833 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
00363-0541-36 18 POUCH in 1 CARTON (0363-0541-36) / 2 TABLET, EFFERVESCEN... Walgreens Antacid Pain Relief Extra Strength Walgreens 2021-02-05
37808-0540-24 12 POUCH in 1 CARTON (37808-540-24) / 2 TABLET, EFFERVESCEN... HEB Extra Strength Effervescent Antacid and Pain Relief H. E. Butt Grocery Company 2020-06-25
63868-0569-24 12 POUCH in 1 CARTON (63868-569-24) / 2 TABLET, EFFERVESCEN... Quality Choice Extra Strength Effervescent Antacid and Pain Relief Chain Drug Marketing Association 2020-11-04
69842-0542-36 18 POUCH in 1 CARTON (69842-542-36) / 2 TABLET, EFFERVESCEN... CVS Health Extra Strength Antacid and Pain Reliever CVS Pharmacy 2020-12-30
70000-0574-01 18 POUCH in 1 CARTON (70000-0574-1) / 2 TABLET, EFFERVESCEN... Leader Extra Strength Effervescent Antacid and Pain Reliever Cardinal Health 2021-06-25
Observed labelers: Cardinal Health (1) · Chain Drug Marketing Association (1) · CVS Pharmacy (1) · H. E. Butt Grocery Company (1) · Walgreens (1) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

💲 Pricing (NADAC)

NADAC is CMS's National Average Drug Acquisition Cost — roughly what pharmacies pay to buy the drug. It is an acquisition benchmark, not your copay.
Per ea · median
$0.0846
Range $0.0846–$0.0846 · middle 50% $0.0846–$0.0846 · 1 NDCs
Latest compatible distributions from the CMS NADAC file · dataset watermark 2026-07-10. Prices vary by package and pharmacy; a distribution is shown instead of one misleading number. Rows the dataset is silent on carry no price. No zero-cost conclusion should be drawn.

🗃️ 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.