NDC codes

FDA NDC Directory
Product NDC (as listed)83107-013Labeler and product segments. Claims need a package NDC.
Product NDC at billing width83107-0013Add 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
83107-013-30831070013308310700133030 TABLET in 1 BOTTLE (83107-013-30)Marketed from Jan 1, 2026

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)
Lotronex
Generic name (nonproprietary)
alosetron hydrochloride
Active ingredients
Alosetron hydrochloride — .5 mg/1
Dosage form
Tablet
Route
Oral
Labeler
Legacy Pharma USA Inc.NDC labeler code 83107
Product type
Prescription drug
Marketing category
NDA — New Drug ApplicationApplication NDA 021107
Marketing start
Listing expires
Other FDA classes
Serotonin 3 Receptor Antagonists (Mechanism)
Identifiers
Product ID 83107-013_4db1d464-27cc-80a9-e063-6394a90ade00SPL ID 4db1d464-27cc-80a9-e063-6394a90ade00SPL set ID c216e967-436f-475a-8e6a-2ad11adc63afRxCUI 259306, 261362, 403975, 540181UNII 2F5R1A46YW

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

N483107001330 followed by a unit qualifier and the quantity

Package 83107-0013-30. 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 . This label includes a boxed warning.

Indications (excerpt from the label)

LOTRONEX is indicated only for women with severe diarrhea-predominant irritable bowel syndrome (IBS) who have: chronic IBS symptoms (generally lasting 6 months or longer), had anatomic or biochemical abnormalities of the gastrointestinal tract excluded, and not responded adequately to conventional therapy. Diarrhea-predominant IBS is severe if it includes diarrhea and one or more of the following: frequent and severe abdominal pain/discomfort, frequent bowel urgency or fecal incontinence, disability or restriction of daily activities due to IBS. Because of infrequent but serious gastrointestinal adverse reactions associated with LOTRONEX, the indication is restricted to those patients for wh…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 83107-013

What is NDC 83107-013?
83107-013 is the product NDC for Lotronex (alosetron hydrochloride), Alosetron hydrochloride .5 mg/1 tablet, listed with the FDA by Legacy Pharma USA Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?
Lotronex (Alosetron hydrochloride).
What is the active ingredient?
Alosetron hydrochloride.
Who is the labeler?
Legacy Pharma USA Inc., NDC labeler code 83107. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Lotronex?
3 other product NDCs are listed under this name. See all Lotronex 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 Lotronex NDCs
ProductStrengthForm · routeLabelerProduct NDCPackage NDCs (11-digit)
Lotronexalosetron hydrochlorideAlosetron hydrochloride 1 mg/1TabletOralLegacy Pharma USA Inc.83107-01283107-0012-30
Lotronexalosetron hydrochlorideAlosetron hydrochloride .5 mg/1TabletOralSebela Pharmaceuticals Inc.54766-89454766-0894-03
Lotronexalosetron hydrochlorideAlosetron hydrochloride 1 mg/1TabletOralSebela Pharmaceuticals Inc.54766-89554766-0895-03

Other NDCs under NDA 021107

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

FDA NDC Directory listings under NDA 021107
ProductStrengthForm · routeLabelerProduct NDC
Lotronexalosetron hydrochlorideAlosetron hydrochloride .5 mg/1TabletOralSebela Pharmaceuticals Inc.54766-894
Lotronexalosetron hydrochlorideAlosetron hydrochloride 1 mg/1TabletOralSebela Pharmaceuticals Inc.54766-895
Lotronexalosetron hydrochlorideAlosetron hydrochloride 1 mg/1TabletOralLegacy Pharma USA Inc.83107-012

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