Guaifenesin and Dextromethorphan Hydrobromide · DEXTROMETHORPHAN HYDROBROMIDE 10 mg/5mL; GUAIFENESIN 100 mg/5mL · Syrup · Oral · Method Pharmaceuticals
NDC 58657-0504-08 · 237 mL in 1 BOTTLE, PLASTIC · OTC MONOGRAPH DRUG · View full market →
Just 2 companies supply this market — thin enough that a single exit would be felt immediately. The price has held steady around $0.0231 per mL over the past year. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Medicare Part D does not cover over-the-counter drugs — by law it pays only for products requiring a prescription.
How Part D pricing works →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 · price up 2% 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 →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Method Pharmaceuticals | DEXTROMETHORPHAN HYDROBROMIDE 10 mg/5mL; GUAIFENESIN 100 mg/5mL | Jul 15, 2026 | Sep 3, 2026 |
| Bryant Ranch Prepack | DEXTROMETHORPHAN HYDROBROMIDE 10 mg/5mL; GUAIFENESIN 100 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Guaifenesin and Dextromethorphan Hydrobromide — NDC 58657-0504-08," retrieved September 3, 2026, https://drugdashboards.com/drug/58657050408.
Free to cite with attribution — see how the data is put together.