The short version
7 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.
Mucinex DM Maximum Strength
Guaifenesin and Dextromethorphan Hydrobromide · GUAIFENESIN 1200 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1 · Tablet, Extended Release · Oral · A-S Medication Solutions
NDC 50090-6549-00 · 24 BLISTER PACK in 1 CARTON / 14 TABLET, EXTENDED RELEASE in 1 BLISTER PACK · NDA · 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.
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 dextromethorphan hydrobromide, guaifenesin (oral solid) in the next 90 days
sole-source market · price up 1% YoY
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
- NDA021620
- TE code
- —
- Approval date
- Apr 29, 2004
- 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 Guaifenesin and Dextromethorphan Hydrobromide (Tablet, Extended Release)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| A-S Medication Solutions | GUAIFENESIN 600 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1 | Aug 26, 2026 | Sep 3, 2026 |
| Lil' Drug Store Products, Inc. | GUAIFENESIN 600 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1 | Aug 26, 2026 | Sep 3, 2026 |
| A-S Medication Solutions | GUAIFENESIN 1200 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Cvs Pharmacy, Inc | GUAIFENESIN 1200 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Reckitt Benckiser LLC | GUAIFENESIN 600 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Reckitt Benckiser LLC | GUAIFENESIN 1200 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Rite-Aid | GUAIFENESIN 1200 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Select Consumer Group | GUAIFENESIN 600 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Sportpharm LLC | GUAIFENESIN 600 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Lil' Drug Store Products, Inc. | GUAIFENESIN 30 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 600 mg/1 | Jul 22, 2026 | Aug 22, 2026 |
| A-S Medication Solutions | GUAIFENESIN 30 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 600 mg/1 | Jul 22, 2026 | Aug 20, 2026 |
| A-S Medication Solutions | GUAIFENESIN 60 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 1200 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Cvs Pharmacy, Inc | GUAIFENESIN 60 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 1200 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Reckitt Benckiser LLC | GUAIFENESIN 30 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 600 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Reckitt Benckiser LLC | GUAIFENESIN 60 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 1200 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Rite-Aid | GUAIFENESIN 60 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 1200 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Select Consumer Group | GUAIFENESIN 30 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 600 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Sportpharm LLC | GUAIFENESIN 30 mg/1; DEXTROMETHORPHAN HYDROBROMIDE 600 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| A-S Medication Solutions | DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1; GUAIFENESIN 600 mg/1 | Jul 15, 2026 | Jul 18, 2026 |
| Lil' Drug Store Products, Inc. | DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1; GUAIFENESIN 600 mg/1 | Jul 15, 2026 | Jul 16, 2026 |
| A-S Medication Solutions | DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1; GUAIFENESIN 1200 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Cvs Pharmacy, Inc | DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1; GUAIFENESIN 1200 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Reckitt Benckiser LLC | DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1; GUAIFENESIN 600 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Reckitt Benckiser LLC | DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1; GUAIFENESIN 1200 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Rite-Aid | DEXTROMETHORPHAN HYDROBROMIDE 60 mg/1; GUAIFENESIN 1200 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Select Consumer Group | DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1; GUAIFENESIN 600 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
| Sportpharm LLC | DEXTROMETHORPHAN HYDROBROMIDE 30 mg/1; GUAIFENESIN 600 mg/1 | Jul 15, 2026 | Jul 15, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "Mucinex DM Maximum Strength — NDC 50090-6549-00," retrieved September 3, 2026, https://drugdashboards.com/drug/50090654900.
Free to cite with attribution — see how the data is put together.