NDC codes

FDA NDC Directory
Product NDC (as listed)16571-242Labeler and product segments. Claims need a package NDC.
Product NDC at billing width16571-0242Add 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 NDC11-digit (billing)PackageCopy
16571-242-0116571024201100 TABLET in 1 BOTTLE (16571-242-01)Marketed from Nov 18, 2025

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)
Dichlorphenamide
Generic name (nonproprietary)
dichlorphenamide
Active ingredients
Dichlorphenamide — 50 mg/1
Dosage form
Tablet
Route
Oral
Labeler
Rising Pharma Holdings, Inc.NDC labeler code 16571
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 218783
Marketing start
Listing expires
Other FDA classes
Carbonic Anhydrase Inhibitors (Mechanism)Sulfonamides (Chemical structure)
Identifiers
Product ID 16571-242_3ef66eca-f35a-46a8-bebe-b286dfbbb376SPL ID 3ef66eca-f35a-46a8-bebe-b286dfbbb376SPL set ID 35b9c81a-5062-451d-8b0c-1b599113aa6cRxCUI 197594UNII VVJ6673MHYUPC 0316571242016
Pharmacologic class
Carbonic Anhydrase Inhibitor

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

N416571024201 followed by a unit qualifier and the quantity

Package 16571-0242-01. 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 .

Indications (excerpt from the label)

Dichlorphenamide tablets are indicated for the treatment of primary hyperkalemic periodic paralysis, primary hypokalemic periodic paralysis, and related variants. Dichlorphenamide tablets are an oral carbonic anhydrase inhibitor indicated for the treatment of primary hyperkalemic periodic paralysis, primary hypokalemic periodic paralysis, and related variants ( 1 )

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 16571-242

What is NDC 16571-242?
16571-242 is the product NDC for Dichlorphenamide, Dichlorphenamide 50 mg/1 tablet, listed with the FDA by Rising Pharma Holdings, Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?
Dichlorphenamide.
What is the active ingredient?
Dichlorphenamide.
Who is the labeler?
Rising Pharma Holdings, Inc., NDC labeler code 16571. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Dichlorphenamide?
1 other product NDC are listed under this name. See all Dichlorphenamide 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 Dichlorphenamide NDCs
ProductStrengthForm · routeLabelerProduct NDCPackage NDCs (11-digit)
DichlorphenamideDichlorphenamide 50 mg/1TabletOralTorrent pharmaceuticals limited13668-67613668-0676-0113668-0676-30

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