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Inon aluminum hydroxide, magnesium carbonate, sodium bicarbonate 400 mg/1.92g; 400 mg/1.92g; 700 mg/1.92g Granule, 12 packets — NDC 49873-0045-01 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Inon aluminum hydroxide, magnesium carbonate, sodium bicarbonate 400 mg/1.92g; 400 mg/1.92g; 700 mg/1.92g Granule, 12 packets — NDC 49873-045-01 (Billing 49873-0045-01)

by Sato Pharmaceutical Co., Ltd. · 12 PACKET in 1 CARTON / 1.92 g in 1 PACKET

This is a package of 12 packets of Inon aluminum hydroxide, magnesium carbonate, sodium bicarbonate 400 mg/1.92g; 400 mg/1.92g; 700 mg/1.92g Granule from Sato Pharmaceutical Co., Ltd., marketed since May 1989 and currently FDA-listed. It is this product's only package size.

NDC 49873-0045-01
🏷️ FDA NDC (as labeled) 49873-045-01 billing pads the product 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 49873-045-01 alone.

Record
FDA NDC Directory package listing · Human OTC drug
Code segments
49873 labeler · 045 product · 01 package
Package marketed since
May 31, 1989
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Barcode (UPC)
0349873045016
FDA record last changed
Jul 24, 2026

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 49873-045-01
Product NDC 49873-045
11-digit billing NDC 49873004501
UNII 5QB0T2IUN0, 0E53J927NA, 8MDF5V39QO
UPC 0349873045016
Application # M001
SPL Set ID e86d9c57-c877-49f1-a405-95a9a226ccf3
Mechanism of action Alkalinizing Activity
DEA schedule Non-controlled
Marketing category OTC MONOGRAPH DRUG
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 1989-05-31
Route ORAL
Dosage form GRANULE
Substance ALUMINUM HYDROXIDE; MAGNESIUM CARBONATE; SODIUM BICARBONATE
Why two NDCs? The FDA registers this code as 49873-045-01 — a 5-3-2 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 product segment → 49873-0045-01. 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.

Clinical

🧪 What is this product?

INON is an over-the-counter oral granule product containing three active ingredients commonly used to relieve heartburn and indigestion. Aluminum hydroxide and magnesium carbonate function as antacids that help neutralize stomach acid, while sodium bicarbonate also works as an antacid. This product is marketed under the FDA's OTC monograph rules for antacid combinations and is taken by mouth to manage occasional acid-related discomfort.

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 gPer 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
49873-0045-01 You're viewing this Main listing 12 PACKET in 1 CARTON / 1.92 g in 1 PACKET 1989-05-31 — Active

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Inon 400 mg/1.92g; 400 mg/1.92g; 700 mg/1.92gthis 49873-0045-01 Sato 12 packets — — 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

🏛️
1989
On the market since
May 1989
📍
2026
Currently FDA-listed
37 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

FlavorPeppermint
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 532B59J990
    Polyvinyl alcohol is a synthetic polymer made from plant-derived materials. It's used as a binder to hold ingredients together, a film-former in coatings, and a thickener in liquid formulations.
  • UNII ETJ7Z6XBU4
    Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
  • UNII 8I089SAH3T
    A carbohydrate powder extracted from potatoes. It serves as a filler to add bulk and volume to the tablet or capsule, and as a disintegrant to help the medicine break apart and release its active ingredient in your body.
  • UNII C151H8M554
    A natural sugar derived from sugar cane or sugar beets. It's used as a sweetener, filler, and binder to improve taste, add bulk, and help hold tablet or capsule ingredients together.

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

The official label also statesInactive ingredients   colloidal silicon dioxide, flavor, partially hydrolyzed polyvinyl alcohol, sugar, starch

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

LabelerSato Pharmaceutical Co., Ltd.
FDA applicationM001 (OTC MONOGRAPH DRUG)
Labeler code49873
First marketedMay 1989
Product typeHuman Otc Drug
Portfolio30 products on file

More NDCs from Sato Pharmaceutical Co., Ltd. labeler code 49873

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 🧪 Active Ingredient 🧪 Inactive Ingredients 🎯 Purpose 📄 Ask a Doctor Before Use If 📄 Ask a Doctor or Pharmacist Before Use If 📄 When Using This Product 🤰 If Pregnant or Breast-Feeding 📄 Keep Out of Reach of Children 📄 Other Information 📄 Package Label / Principal Display Panel
🎯 Indications and Usage 12 words ▾

Uses relieves these symptoms ■ heartburn ■ sour stomach ■ acid indigestion

⏱️ Dosage and Administration 39 words ▾

Directions ■ Adults and children 12 years of age and over: Take 1 packet at a time 3 times daily between meals or after meals, or as directed by a doctor ■ Children under 12 years: Ask a doctor

⚠️ Warnings 109 words ▾

Warnings If pregnant or breast-feeding , ask a health professional before use. When using this product ■ Do not take more than 3 packets in 24-hours period, or use the maximum dosage of this product for more than 2 weeks, except under the advice and supervision of a doctor ■ May have laxative effect Ask a doctor before use if you have ■ a sodium-restricted diet Ask a doctor or pharmacist before use if you are ■ taking a prescription drug Antacids may interact with certain prescription drugs. Keep out of reach of children.

In case of overdose, get medical help or contact a Poison Control Center right away.

🧪 Active Ingredient 18 words ▾

Active ingredients [in each packet (1.92g)] Aluminum hydroxide 400 mg Magnesium carbonate 400 mg Sodium bicarbonate 700 mg

🧪 Inactive Ingredients 12 words ▾

Inactive ingredients colloidal silicon dioxide, flavor, partially hydrolyzed polyvinyl alcohol, sugar, starch

🎯 Purpose 10 words ▾

Purpose Aluminum hydroxide Antacid Magnesium carbonate Antacid Sodium bicarbonate Antacid

📄 Ask a Doctor Before Use If 12 words ▾

Ask a doctor before use if you have ■ a sodium-restricted diet

📄 Ask a Doctor or Pharmacist Before Use If 22 words ▾

Ask a doctor or pharmacist before use if you are ■ taking a prescription drug Antacids may interact with certain prescription drugs.

📄 When Using This Product 42 words ▾

When using this product ■ Do not take more than 3 packets in 24-hours period, or use the maximum dosage of this product for more than 2 weeks, except under the advice and supervision of a doctor ■ May have laxative effect

🤰 If Pregnant or Breast-Feeding 11 words ▾

If pregnant or breast-feeding , ask a health professional before use.

📄 Keep Out of Reach of Children 21 words ▾

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

📄 Other Information 12 words ▾

Other information ■ Each packet contains: sodium 175 mg, magnesium 95 mg

📄 Package Label / Principal Display Panel 2 words ▾

inongrancart.jpg carton

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 INON (this brand).

Top reported reactions

Acute Myocardial Infarction1
Arteriosclerosis Coronary Artery1
Atelectasis1
Atrial Fibrillation1
Blood Loss Anaemia1
Cardiomegaly1
Cholelithiasis1

Reporter sex

0 reports

Serious outcomes

Hospitalization2
Life-threatening1
Reports over time (by year) — tap or hover for the count & year
2020 2022 2024 2026 1 0
Most recent year is provisional (FAERS lags ~3 months).
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 Sato Pharmaceutical Co., Ltd.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Sato Pharmaceutical Co., Ltd. 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.
← 49873-0019-01 · Sato 49873-0050-02 · Sato →
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.