The short version
Just 2 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.
Diphenhydramine HCl Oral · DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/10mL · Solution · Oral · Everpharm LLC
NDC 84415-0013-01 · 100 CUP, UNIT-DOSE in 1 BOX, UNIT-DOSE / 10 mL in 1 CUP, UNIT-DOSE · OTC MONOGRAPH DRUG · View full market →
Just 2 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.
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 →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.
sole-source market · price up 9% 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 |
|---|---|---|---|
| Everpharm LLC | DIPHENHYDRAMINE HYDROCHLORIDE 12.5 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Everpharm LLC | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/10mL | Jul 15, 2026 | Sep 2, 2026 |
| Rising Pharma Holdings, Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 12.5 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Rising Pharma Holdings, Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/10mL | Jul 15, 2026 | Sep 2, 2026 |
| Major Pharmaceuticals | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/10mL | Jul 15, 2026 | Jul 29, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Diphenhydramine HCl Oral Solution — NDC 84415-0013-01," retrieved September 3, 2026, https://drugdashboards.com/drug/84415001301.
Free to cite with attribution — see how the data is put together.