Montelukast Sodium · MONTELUKAST SODIUM 4 mg/500mg · Granule · Oral · Torrent Pharmaceuticals Limited
NDC 13668-0531-94 · 30 PACKET in 1 CARTON / 500 mg in 1 PACKET · ANDA · View full market →
6 companies supply this market — a reasonable cushion if one runs into trouble. The price is down 22% over the past year, to $0.8909 per unit. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want.
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The same NDC has different prices depending on who is paying. Units differ between rungs — compare within a rung over time, not rung against rung, unless the units match.
Each rung is the newest figure for this NDC from one federal price system, shown with its own unit. Part D is matched by drug name because CMS publishes no NDCs there; it is gross spending, before confidential rebates.
Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.
No Medicare Part D plan in CMS's quarterly files lists this product. That usually means it is discontinued, a repackager's listing, or a product no plan has added to its formulary.
How Part D pricing works →Manufacturer list price as filed — not what pharmacies actually pay after discounts.
Some pressure is visible, but not much — here’s everything the score found to count.
The score counts pressure that is already visible — fewer makers, shortages, recalls, falling prices. 0 means none of it; 100 means all of it at once. Recomputed daily · as of Sep 3, 2026
sole-source market
For scale: the typical drug’s chance is about 0.1% — this one is in ordinary territory.
Backtested statistical model over the whole market, not this package alone. Model details →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Ajanta Pharma USA Inc. | MONTELUKAST SODIUM 4 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Aurobindo Pharma Limited | MONTELUKAST SODIUM 4 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Organon LLC | MONTELUKAST SODIUM 4 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Patheon Manufacturing Services LLC | MONTELUKAST SODIUM 4 mg/.0005kg | Jul 15, 2026 | Sep 2, 2026 |
| Pel Healthcare Llc | MONTELUKAST SODIUM 1 kg/kg | Jul 15, 2026 | Sep 2, 2026 |
| Torrent Pharmaceuticals Limited | MONTELUKAST SODIUM 4 mg/500mg | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Montelukast Sodium — NDC 13668-0531-94," retrieved September 3, 2026, https://drugdashboards.com/drug/13668053194.
Free to cite with attribution — see how the data is put together.