What is NDC 23155-843?

23155-843 is the product NDC for Metformin Hydrochloride, Metformin hydrochloride 1000 mg/1 tablet, listed with the FDA by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.. It has 3 package NDCs, shown above in 10- and 11-digit form.

Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc., NDC labeler code 23155. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Metformin Hydrochloride?

366 other product NDCs are listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Metformin Hydrochloride NDC 23155-843

NDC codes

FDA NDC Directory

Product NDC (as listed)23155-843Labeler and product segments. Claims need a package NDC.

Product NDC at billing width23155-0843Add 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
23155-843-01	2315508430123155084301	100 TABLET in 1 BOTTLE (23155-843-01)Marketed from Jan 19, 2023
23155-843-05	2315508430523155084305	500 TABLET in 1 BOTTLE (23155-843-05)Marketed from Jan 19, 2023
23155-843-10	2315508431023155084310	1000 TABLET in 1 BOTTLE (23155-843-10)Marketed from Aug 30, 2023

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): Metformin Hydrochloride
Generic name (nonproprietary): metformin hydrochloride
Active ingredients: Metformin hydrochloride — 1000 mg/1
Dosage form: Tablet
Route: Oral
Labeler: Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.NDC labeler code 23155
Product type: Prescription drug
Marketing category: ANDA — Abbreviated New Drug Application (generic)Application ANDA 213320
Marketing start: Jan 19, 2023
Marketing end: Apr 30, 2027
Other FDA classes: Biguanides (Chemical structure)
Identifiers: Product ID 23155-843_5de825b4-d3e9-474d-9f17-ceed2d4ea87cSPL ID 5de825b4-d3e9-474d-9f17-ceed2d4ea87cSPL set ID b63bfafa-db4c-4fb8-84cd-ff73a5e7d320RxCUI 861004, 861007, 861010UNII 786Z46389EUPC 0042317000076
Pharmacologic class: Biguanide

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

N423155084301 followed by a unit qualifier and the quantity

Package 23155-0843-01. 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 Dec 17, 2025. This label includes a boxed warning.

Indications (excerpt from the label)

Metformin hydrochloride tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults and pediatric patients 10 years of age and older with type 2 diabetes mellitus. Metformin hydrochloride tablets are a biguanide indicated as an adjunct to diet and exercise to improve glycemic control in adults and pediatric patients 10 years of age and older with type 2 diabetes mellitus.( 1 )

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 23155-843

What is NDC 23155-843?: 23155-843 is the product NDC for Metformin Hydrochloride, Metformin hydrochloride 1000 mg/1 tablet, listed with the FDA by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.. It has 3 package NDCs, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Metformin Hydrochloride.
What is the active ingredient?: Metformin hydrochloride.
Who is the labeler?: Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc., NDC labeler code 23155. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Metformin Hydrochloride?: 366 other product NDCs are listed under this name. See all Metformin Hydrochloride NDCs.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

Other finished products listed under the same name: strengths, forms and labelers.

Other Metformin Hydrochloride NDCs
Product	Strength	Form · route	Labeler	Product NDC	Package NDCs (11-digit)
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	REMEDYREPACK INC.	70518-4781	70518-4781-00
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	Tablet, Extended releaseOral	Marlex Pharmaceuticals, Inc.	10135-823	10135-0823-0510135-0823-1010135-0823-30+5 more
Metformin Hydrochloride	Metformin hydrochloride 750 mg/1	Tablet, Extended releaseOral	Marlex Pharmaceuticals, Inc.	10135-824	10135-0824-0510135-0824-1010135-0824-90
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	Preferred Pharmaceuticals Inc.	68788-4185	68788-4185-0168788-4185-0368788-4185-06+3 more
Metformin Hydrochloride	Metformin hydrochloride 625 mg/1	TabletOral	ScieGen Pharmaceuticals Inc	50228-588	50228-0588-0550228-0588-30
Metformin Hydrochloride	Metformin hydrochloride 750 mg/1	TabletOral	ScieGen Pharmaceuticals Inc	50228-589	50228-0589-0550228-0589-30
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Extended releaseOral	REMEDYREPACK INC.	70518-4710	70518-4710-0070518-4710-02
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	TabletOral	REMEDYREPACK INC.	70518-4698	70518-4698-00
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	Advanced Rx of Tennessee, LLC	80425-0591	80425-0591-0180425-0591-0280425-0591-03+1 more
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	TabletOral	Unit Dose Solutions, Inc.	87441-054	87441-0054-01

All 367 Metformin Hydrochloride NDCs

Other NDCs under ANDA 213320

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

FDA NDC Directory listings under ANDA 213320
Product	Strength	Form · route	Labeler	Product NDC
Metformin HCL	Metformin hydrochloride 500 mg/1	TabletOral	Direct_Rx	72189-617
Metformin HCL	Metformin hydrochloride 1000 mg/1	TabletOral	Direct_Rx	72189-635
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	TabletOral	Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.	23155-841
Metformin Hydrochloride	Metformin hydrochloride 850 mg/1	TabletOral	Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.	23155-842
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	QPharma Inc	42708-202
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	Tablet, Film coatedOral	QPharma,Inc.	42708-203
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	A-S Medication Solutions	50090-7877
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	A-S Medication Solutions	50090-7878
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	Tablet, Film coatedOral	A-S Medication Solutions	50090-8041
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	Tablet, Film coatedOral	A-S Medication Solutions	50090-8043
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	TabletOral	Coupler LLC	67046-1516
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	Tablet, Film coatedOral	Ascend Laboratories, LLC	67877-930
Metformin Hydrochloride	Metformin hydrochloride 850 mg/1	Tablet, Film coatedOral	Ascend Laboratories, LLC	67877-931
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	Tablet, Film coatedOral	Ascend Laboratories, LLC	67877-932
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	TabletOral	NuCare Pharmaceuticals,Inc.	68071-3518
Metformin Hydrochloride	Metformin hydrochloride 1000 mg/1	TabletOral	NuCare Pharmaceuticals,Inc.	68071-3526
Metformin Hydrochloride	Metformin hydrochloride 850 mg/1	TabletOral	NuCare Pharmaceuticals,Inc.	68071-3531
Metformin Hydrochloride	Metformin hydrochloride 850 mg/1	TabletOral	NuCare Pharmaceuticals,Inc.	68071-3575
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	TabletOral	NuCare Pharmaceuticals, Inc.	68071-3739
Metformin Hydrochloride	Metformin hydrochloride 500 mg/1	Tablet, Film coatedOral	NuCare Pharmaceuticcals,Inc.	68071-5306

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