What is NDC 47682-820?

47682-820 is the product NDC for Medi-First Antacid (calcium carbonate), Calcium carbonate 420 mg/1 tablet, chewable, listed with the FDA by Unifirst First Aid Corporation. It has 5 package NDCs, shown above in 10- and 11-digit form.

What drug is associated with this NDC?

Medi-First Antacid (Calcium carbonate).

Unifirst First Aid Corporation, NDC labeler code 47682. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Medi-First Antacid?

None: this is the only finished product listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Medi-First Antacid NDC 47682-820 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)47682-820Labeler and product segments. Claims need a package NDC.

Product NDC at billing width47682-0820Add the package segment from the table below.

Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC	11-digit (billing)	Package
47682-820-13	4768208201347682082013	250 PACKET in 1 BOX (47682-820-13) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)Marketed from Jun 15, 2014
47682-820-33	4768208203347682082033	50 PACKET in 1 BOX (47682-820-33) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)Marketed from Jun 15, 2014
47682-820-48	4768208204847682082048	125 PACKET in 1 BOX (47682-820-48) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)Marketed from Jun 15, 2014
47682-820-50	4768208205047682082050	25 PACKET in 1 BOX (47682-820-50) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)Marketed from Apr 1, 2019
47682-820-99	4768208209947682082099	2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)Marketed from Jun 15, 2014

How the 11-digit form is made: The product segment has 3 digits, so one leading zero is added to it (5-3-2 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary): Medi-First Antacid
Generic name (nonproprietary): calcium carbonate
Active ingredients: Calcium carbonate — 420 mg/1
Dosage form: Tablet, Chewable
Route: Oral
Labeler: Unifirst First Aid CorporationNDC labeler code 47682
Product type: Over-the-counter drug
Marketing category: OTC monograph drugApplication M 001
Marketing start: Jun 15, 2014
Listing expires: Dec 31, 2026
Other FDA classes: Calcium (Chemical structure)Divalent (Chemical structure)Increased Coagulation Factor Activity (Physiologic effect)Phosphate Chelating Activity (Mechanism)
Identifiers: Product ID 47682-820_3e4be5ad-5b19-b8da-e063-6394a90a50d6SPL ID 3e4be5ad-5b19-b8da-e063-6394a90a50d6SPL set ID 60703e3d-52b1-49c4-b4e2-59d96fa09a78RxCUI 313884UNII H0G9379FGKUPC 0347682902339, 0347682802332, 0347682101336
Pharmacologic class: Blood Coagulation Factor; Phosphate Binder

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No HCPCS code in Med-Code's directory. Oral products like this are usually dispensed by a pharmacy and billed by NDC.

NDC on a medical claim

N447682082013 followed by a unit qualifier and the quantity

Package 47682-0820-13. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective Sep 8, 2025.

Indications (excerpt from the label)

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

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 47682-820

What is NDC 47682-820?: 47682-820 is the product NDC for Medi-First Antacid (calcium carbonate), Calcium carbonate 420 mg/1 tablet, chewable, listed with the FDA by Unifirst First Aid Corporation. It has 5 package NDCs, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Medi-First Antacid (Calcium carbonate).
What is the active ingredient?: Calcium carbonate.
Who is the labeler?: Unifirst First Aid Corporation, NDC labeler code 47682. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Medi-First Antacid?: None: this is the only finished product listed under this name.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

Other NDCs under M 001

Products listed under the same FDA application: other strengths and forms, and repackagers who relabel the same product.

FDA NDC Directory listings under M 001
Product	Strength	Form · route	Labeler	Product NDC
Soothe Chewablecitric acid	Citric acid monohydrate 1.5 g/108.27g	Chewable gelOral	Carolina Cannabis Creations LLC	82876-840
ultra strength antacidantacid	Calcium carbonate 1000 mg/1	Tablet, ChewableOral	Target Corporation	11673-933
Rolaids Extra Strength Mintcalcium carbonate and magnesium hydroxide	Calcium carbonate 675 mg/1; Magnesium hydroxide 135 mg/1	Tablet, ChewableOral	Chattem, Inc.	41167-1001
Extra Strength Antacidcalcium carbonate	Calcium carbonate 750 mg/1	Tablet, ChewableOral	Grocery Outlet, Inc.	85828-903
Medique Alcalakcalcium carbonate	Calcium carbonate 420 mg/1	Tablet, ChewableOral	Unifirst First Aid Corporation	47682-201
Ultra Strength Antacidcalcium carbonate	Calcium carbonate 1000 mg/1	Tablet, ChewableOral	CVS	51316-171
Kirkland Ultra Stregth Antacid 171ABcalcium carbonate	Calcium carbonate 1000 mg/1	TabletOral	COSTCO WHOLESALE COMPANY	63981-171
Regular Strength Antacidcalcium carbonate	Calcium carbonate 500 mg/1	Tablet, ChewableOral	Harris Teeter, LLC	69256-138
Ultra Strength Antacidcalcium carbonate	Calcium carbonate 1000 mg/1	Tablet, ChewableOral	Grocery Outlet, Inc.	85828-905
Magnesium Oxide	Magnesium oxide 400 mg/1	TabletOral	A-S Medication Solutions	50090-7432
Ultra Strength Assorted Berry Antacidcalcium carbonate	Calcium carbonate 1000 mg/1	Tablet, ChewableOral	Harris Teeter, LLC	69256-171
Antacid- Calcium Carbonatecalcium carbonate	Calcium carbonate 1000 mg/1	Tablet, ChewableOral	Anhui Jiuhe Health Industry Co., Ltd	87745-001
Tums Chewy Bitescalcium carbonate	Calcium carbonate 1000 mg/1	Tablet, ChewableOral	Haleon US Holdings LLC	0135-0183
De La Cruz Desempachosodium bicarbonate	Sodium bicarbonate 525 mg/15mL	LiquidOral	DLC LABORATORIES, INC.	24286-1523
HEB Wild Berry Antacid Chewscalcium carbonate	Calcium carbonate 750 mg/1	Tablet, ChewableOral	HEB	37808-493
Unishield Antacidcalcium carbonate	Calcium carbonate 420 mg/1	Tablet, ChewableOral	Unishield	49314-1013
Calmicid AC Acid Reducerfamotidine	Famotidine 20 mg/1	Tablet, CoatedOral	Melaleuca, Inc.	54473-411
Exchange Select Antacid Tropical Fruitcalcium carbonate	Calcium carbonate 750 mg/1	Tablet, ChewableOral	ARMY AND AIR FORCE EXCHANGE SERVICE	55301-102
Leader Extra Strength Sugar Free Antacidantacid	Calcium carbonate 750 mg/1	Tablet, ChewableOral	Cardinal Health	70000-0460
Sodium Bicarbonate Antacidsodium bicarbonate	Sodium bicarbonate 650 mg/1	TabletOral	Aphena Pharma Solutions - Tennessee, LLC	71610-669

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Medi-First Antacid (Calcium carbonate) NDC 47682-820