The short version
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Tizanidine Hydrochloride
Tizanidine Hydrochloride · TIZANIDINE HYDROCHLORIDE 4 mg/1 · Capsule, Gelatin Coated · Oral · AvKARE
NDC 42291-0811-15 · 150 CAPSULE, GELATIN COATED in 1 BOTTLE · ANDA · View full market →
Medicare Part D
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 →NADAC price per unit
No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Estimated fill cost
WAC per package, as filed
$49.95
Reported to Texas DSHS · 2026 annual filing · AvKare
Manufacturer list price as filed — not what pharmacies actually pay after discounts.
Supply fragility
Not scored — fragility is computed for NADAC-priced NDCs.
90-day shortage risk (model v2)
0.1%chance of a new FDA shortage posting for tizanidine hydrochloride (oral solid) in the next 90 days
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 →
Regulatory
- Application
- ANDA078868
- TE code
- AB
- Approval date
- Feb 3, 2012
- Patents / exclusivity
- None on file
Shortage history
No FDA shortage reports for this drug or its presentations.
Recalls (this NDC)
No enforcement reports list this package NDC.
Manufacturers of Tizanidine Hydrochloride (Capsule, Gelatin Coated)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Actavis Pharma, Inc. | TIZANIDINE HYDROCHLORIDE 2 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Actavis Pharma, Inc. | TIZANIDINE HYDROCHLORIDE 6 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Actavis Pharma, Inc. | TIZANIDINE HYDROCHLORIDE 4 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Apotex Corp. | TIZANIDINE HYDROCHLORIDE 4 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Apotex Corp. | TIZANIDINE HYDROCHLORIDE 2 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Apotex Corp. | TIZANIDINE HYDROCHLORIDE 6 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| AvKARE | TIZANIDINE HYDROCHLORIDE 4 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "Tizanidine Hydrochloride — NDC 42291-0811-15," retrieved September 3, 2026, https://drugdashboards.com/drug/42291081115.
Free to cite with attribution — see how the data is put together.