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Walgreens Fast Acting Heartburn Relief Extra Strength aluminum hydroxide and magnesium carbonate 254 mg/5mL; 237.5 mg/5mL Liquid, 355 mL — NDC 00363-7630-12 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Walgreens Fast Acting Heartburn Relief Extra Strength aluminum hydroxide and magnesium carbonate 254 mg/5mL; 237.5 mg/5mL Liquid, 355 mL — NDC 0363-7630-12 (Billing 00363-7630-12)

by WALGREEN CO. · 355 mL in 1 BOTTLE

This is a package of 355 mL of Walgreens Fast Acting Heartburn Relief Extra Strength aluminum hydroxide and magnesium carbonate 254 mg/5mL; 237.5 mg/5mL Liquid from WALGREEN CO., marketed since Jan 2018 and currently FDA-listed. It is this product's only package size.

NDC 00363-7630-12
🏷️ FDA NDC (as labeled) 0363-7630-12 billing pads the labeler segment with a zero
OTC On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 8, 2026 · this listing last changed Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 0363-7630-12 alone.

Record
FDA NDC Directory package listing · Human OTC drug
Code segments
0363 labeler · 7630 product · 12 package
Package marketed since
Jan 15, 2018
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Billing quantity
355 mL per package
Barcode (UPC-A, from the NDC)
3 0363763012 2
FDA record last changed
Jul 24, 2026

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 0363-7630-12
Product NDC 0363-7630
11-digit billing NDC 00363763012
NCPDP billing unit ML — per mL (volume)
RxCUI 245001
UNII 5QB0T2IUN0, 0E53J927NA
Application # M001
SPL Set ID 6eae97f3-a174-4cbc-badc-777475d2f7af
DEA schedule Non-controlled
Marketing category OTC MONOGRAPH DRUG
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2018-01-15
Route ORAL
Dosage form LIQUID
Substance ALUMINUM HYDROXIDE; MAGNESIUM CARBONATE
Quick answers
  • RxCUI (RxNorm): 245001
Why two NDCs? The FDA registers this code as 0363-7630-12 — a 4-4-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the labeler segment → 00363-7630-12. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

RxNorm drug class

This medicine belongs to the Drugs for treatment of hyperkalemia and hyperphosphatemia class.

Drug family (ATC) Drugs for treatment of hyperkalemia and hyperphosphatemia, Magnesium compounds, Osmotically acting laxatives
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

Clinical

🧪 What is this product?

This is an over-the-counter liquid antacid taken by mouth, containing aluminum hydroxide and magnesium carbonate. Both ingredients are commonly used to neutralize stomach acid and are typically used to provide temporary relief from heartburn, acid indigestion, and upset stomach. This product is marketed under FDA's OTC monograph rules for antacids rather than as an individually approved drug application.

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
00363-7630-12 You're viewing this Main listing 355 mL in 1 BOTTLE 2018-01-15 — Active

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Extra Strength Heartburn Relief 254 mg/5mL; 237.5 mg/5mL 70000-0363-01 CARDINAL 355 ml $0.015 — Availability likely —
Gaviscon 254 mg/5mL; 237.5 mg/5mL 00135-0095-41 Haleon 355 ml — — FDA listed —
Gaviscon 254 mg/5mL; 237.5 mg/5mL 00135-0574-01 Haleon 355 ml — — FDA listed —
Walgreens Fast Acting Heartburn Relief Extra Strength 254 mg/5mL; 237.5 mg/5mLthis 00363-7630-12 WALGREEN 355 ml — — FDA listed —
HEB Extra Strength Cool Mint 254 mg/5mL; 237.5 mg/5mL 37808-0632-12 HEB 355 ml — — FDA listed —
Heartburn Relief 254 mg/5mL; 237.5 mg/5mL 57896-0565-12 GERI-CARE 355 ml — — FDA listed —
Heartburn Relief 254 mg/5mL; 237.5 mg/5mL 63868-0565-12 CHAIN 355 ml — — FDA listed —
CVS Health Extra Strength Antacid 254 mg/5mL; 237.5 mg/5mL 69842-0376-12 CVS 355 ml — — FDA listed —
Extra Strength Heartburn Relief 254 mg/5mL; 237.5 mg/5mL 69842-0628-12 CVS 355 ml — — FDA listed —
KROGER Extra Strength Antacid Liquid 254 mg/5mL; 237.5 mg/5mL 41226-0763-12 KROGER 355 ml — — FDA listed —
About this product: other versions of the same ingredient, strength and form are listed above, least expensive first, with FDA equivalence ratings where available.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2018
On the market since
Jan 2018
📍
2026
Currently FDA-listed
8 years listed
🔒
·
No generic listed yet
brand only
ℹ️No FDA-approved generic found

We did not find an FDA-approved generic match for this exact strength, form and route.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

What it looks like

FlavorMint
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII 8C3Z4148WZ
    Alginic acid is a natural polymer extracted from brown seaweed. In medicines, it acts as a thickener, binder, and disintegrant to help form tablets and control how quickly the medicine dissolves.
  • UNII LKG8494WBH
    Benzyl alcohol is a clear liquid used as a preservative and solvent in medicines. It helps prevent bacterial and fungal growth and dissolves other ingredients to create uniform liquid formulations.
  • UNII 92RU3N3Y1O
    Dimethicone is a silicone-based oil that acts as an anti-foaming agent and lubricant in medicines. It reduces gas bubbles in liquid formulations and helps coat and protect the stomach lining when ingested.
  • UNII 7FLD91C86K
    Edetate disodium is a chemical compound that binds and removes certain metal ions. In medicines, it acts as a preservative and stabilizer by preventing metals like calcium from interfering with the product's shelf life and consistency.
  • UNII PDC6A3C0OX
    Glycerin is a clear, thick liquid derived from plant oils or fats. It acts as a humectant to retain moisture, a sweetener, and a solvent in medications.
  • UNII 55X04QC32I
    A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
  • UNII 506T60A25R
    Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.
  • UNII 96K6UQ3ZD4
    Sucralose is a synthetic sweetener made from sugar. It's added to medicines to improve taste without adding calories, helping make bitter or unpleasant-tasting drugs easier to take.
  • UNII 059QF0KO0R
    Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
  • UNII TTV12P4NEE
    Xanthan gum is a thickening and stabilizing ingredient made from fermented corn or other sugars. It's added to medicines to improve texture, prevent separation of liquids and solids, and help the product stay consistent.

10 inactive ingredients listed in the exact product block matched to this NDC.

The official label also statesalginic acid, benzyl alcohol, edetate disodium, flavors, glycerin, purified water, simethicone emulsion, sodium hydroxide, sorbitol, sucralose, xanthan gum

Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerWALGREEN CO.
FDA applicationM001 (OTC MONOGRAPH DRUG)
Labeler code00363
First marketedJan 2018
Product typeHuman Otc Drug
Portfolio132 products on file

More NDCs from WALGREEN CO. labeler code 00363

The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

FDA label — Drug Facts FDA SPL

The complete FDA label for this product — the official Drug Facts labeling, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration ⚠️ Warnings 📦 Storage and Handling 🧪 Active Ingredient 🧪 Inactive Ingredients 🎯 Purpose 📄 Do Not Use 📄 Ask a Doctor or Pharmacist Before Use If 📄 When Using This Product 📄 Keep Out of Reach of Children 📄 Questions or Comments 📄 Package Label / Principal Display Panel
🎯 Indications and Usage 13 words ▾

Uses Relieves acid indigestion heartburn sour stomach upset stomach associated with these symptoms

⏱️ Dosage and Administration 31 words ▾

Directions shake well take 2-4 teaspoonful four times a day or as directed by a doctor take after meals and at bedtime dispense product only by spoon or other measuring device

⚠️ Warnings 88 words ▾

Warnings Do not use if you have kidney disease Ask a doctor or pharmacist before use if you are taking a prescription drug. Antacids may interact with certain prescription drugs. if you are on a sodium-restricted diet When using this product do not take more than 16 teaspoonful in 24 hours do not use the maximum dosage for more than 2 weeks laxative effect may occur Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately at 1-800-222-1222.

📦 Storage and Handling 21 words ▾

Other information each teaspoon (5mL) contains : magnesium 70mg, sodium 11mg Store at room temperature; Do not freeze. keep tightly closed

🧪 Active Ingredient 12 words ▾

Active ingredients (in each 5mL teaspoonful) Aluminum hydroxide 254mg Magnesium carbonate 237.5mg

🧪 Inactive Ingredients 21 words ▾

Inactive Ingredients alginic acid, benzyl alcohol, edetate disodium, flavors, glycerin, purified water, simethicone emulsion, sodium hydroxide, sorbitol , sucralose, xanthan gum

🎯 Purpose 3 words ▾

Purpose Antacid Antacid

📄 Do Not Use 8 words ▾

Do not use if you have kidney disease

📄 Ask a Doctor or Pharmacist Before Use If 28 words ▾

Ask a doctor or pharmacist before use if you are taking a prescription drug. Antacids may interact with certain prescription drugs. if you are on a sodium-restricted diet

📄 When Using This Product 29 words ▾

When using this product do not take more than 16 teaspoonful in 24 hours do not use the maximum dosage for more than 2 weeks laxative effect may occur

📄 Keep Out of Reach of Children 22 words ▾

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately at 1-800-222-1222.

📄 Questions or Comments 15 words ▾

Questions or comments? 1-866-467-2748 DO NOT USE IF PRINTED INNER SEAL IS BROKEN OR MISSING

📄 Package Label / Principal Display Panel 80 words ▾

Principal Display Panel Walgreens Compare to Gaviscon® Extra Strength active ingredients †† FAST-ACTING Heartburn Relief LIQUID ANTACID Extra strength Fast- acting heartburn relief helps keep acid down for hours Cool Mint Flavor Naturally and Artificially Flavored 12 FL OZ ( 355 ml) *This product is not manufactured or distributed by GlaxoSmithKline, the distributor of Gaviscon® Extra Strength. DISTRIBUTED BY: WALGREEN CO. 200 WILMOT RD., DEERFIELD, IL 60015 100% SATISFACTION GUARANTEED Walgreens.com ©2018 Walgreen Co.

Extra Strength Liquid Antacid Cool mint

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Walgreens Fast Acting Heartburn Relief Extra Strength (this brand).

Top reported reactions

Cerebral Haemorrhage2
Dizziness2
Headache2
Adverse Event1
Agitation1
Amnesia1
Balance Disorder1

Reporter sex

15 reports
Male · 29%
Female · 71%

Serious outcomes

Hospitalization7
Disabling2
Death2
Life-threatening1
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

About this NDC listing & data coverage

Over-the-counter (OTC) product
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Is this NDC FDA-approved?
An NDC listing does not by itself establish FDA approval — the NDC Directory records that a product is listed with FDA, not that it was reviewed and approved. This listing's marketing category is "Otc Monograph Drug". Products approved under an application carry an NDA, ANDA, or BLA number.
Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by WALGREEN CO.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
WALGREEN CO. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as an over-the-counter product, so it does not require a prescription. Follow the package directions, and ask your pharmacist if you are unsure whether it is right for you.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
← 00363-7590-30 · WALGREENS 00363-7730-04 · Walgreen →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.