The short version
8 companies supply this market — a reasonable cushion if one runs into trouble.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
butalbital and acetaminophen · BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 · Tablet · Oral · El Dorado Distributors LLC
NDC 11584-0030-01 · 100 TABLET in 1 BOTTLE, PLASTIC · ANDA · View full market →
8 companies supply this market — a reasonable cushion if one runs into trouble.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
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.
Negotiated 30-day point-of-sale unit prices and formulary terms aggregated across every unsuppressed Part D and MA-PD plan for the quarter shown. Point of sale means gross of confidential rebates. CMS publishes one representative NDC per drug concept (RxCUI) rather than every package, so these figures come from CMS's representative package for the same drug — matched on generic name, strength, and dosage form. Estimated from MedPAC's program-wide rebate aggregates (June 2023: DIR = 29% of gross Part D spending; brand rebates ≈ 25–40% of gross, generics minimal). Actual rebates are confidential and vary widely by drug — this is a range, not a fact about this drug.
Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.
*No drug-level rebate is public — the estimate applies MedPAC's program-wide brand rebate range to this drug's gross price. Tracked here for 10 quarters since 2024.
No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Not scored — fragility is computed for NADAC-priced NDCs.
OAI inspection at a producing facility (24 months) · 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 →
There's no legal definition — it meets 1 of 6 public criteria. Why that matters →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Par Health | BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 27, 2026 | Sep 3, 2026 |
| Aarkish Pharmaceuticals NJ Inc. | ACETAMINOPHEN 300 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Amici Pharma, Inc. | ACETAMINOPHEN 325 mg/1; BUTALBITAL 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Amici Pharma, Inc. | ACETAMINOPHEN 325 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Amici Pharma, Inc. | ACETAMINOPHEN 300 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Burel Pharmaceuticals, LLC | BUTALBITAL 50 mg/1; ACETAMINOPHEN 300 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Burel Pharmaceuticals, LLC | BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| El Dorado Distributors LLC | BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Larken Laboratories, Inc. | BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Quagen Pharmaceuticals Llc | BUTALBITAL 50 mg/1; ACETAMINOPHEN 300 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Quagen Pharmaceuticals Llc | BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Larken Laboratories, Inc. | BUTALBITAL 25 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 26, 2026 | Aug 31, 2026 |
| Endo USA | BUTALBITAL 50 mg/1; ACETAMINOPHEN 325 mg/1 | Aug 26, 2026 | Aug 26, 2026 |
| Larken Laboratories, Inc. | BUTALBITAL 325 mg/1; ACETAMINOPHEN 25 mg/1 | Jul 22, 2026 | Aug 20, 2026 |
| Burel Pharmaceuticals, LLC | BUTALBITAL 325 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Burel Pharmaceuticals, LLC | BUTALBITAL 300 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| El Dorado Distributors LLC | BUTALBITAL 325 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Endo USA | BUTALBITAL 325 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Larken Laboratories, Inc. | BUTALBITAL 325 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Quagen Pharmaceuticals Llc | BUTALBITAL 300 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Quagen Pharmaceuticals Llc | BUTALBITAL 325 mg/1; ACETAMINOPHEN 50 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Larken Laboratories, Inc. | ACETAMINOPHEN 325 mg/1; BUTALBITAL 25 mg/1 | Jul 15, 2026 | Jul 19, 2026 |
| Burel Pharmaceuticals, LLC | ACETAMINOPHEN 300 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Burel Pharmaceuticals, LLC | ACETAMINOPHEN 325 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| El Dorado Distributors LLC | ACETAMINOPHEN 325 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Endo USA | ACETAMINOPHEN 325 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Larken Laboratories, Inc. | ACETAMINOPHEN 325 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Quagen Pharmaceuticals Llc | ACETAMINOPHEN 325 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Quagen Pharmaceuticals Llc | ACETAMINOPHEN 300 mg/1; BUTALBITAL 50 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Tencon — NDC 11584-0030-01," retrieved September 3, 2026, https://drugdashboards.com/drug/11584003001.
Free to cite with attribution — see how the data is put together.