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.
Nighttime SLEEP AID
Diphenhydramine HCl 50mg · DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 · Capsule, Liquid Filled · Oral · PuraCap Pharmaceutical LLC
NDC 51013-0817-01 · 100 CAPSULE, LIQUID FILLED in 1 BOTTLE · OTC MONOGRAPH DRUG · View full market →
Medicare Part D
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 →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.
Regulatory
- Application
- M010
- TE code
- —
- Approval date
- —
- 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 Diphenhydramine HCl 50mg (Capsule, Liquid Filled)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Grocery Outlet | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| PuraCap Pharmaceutical LLC | DIPHENHYDRAMINE HYDROCHLORIDE 50 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, "Nighttime SLEEP AID — NDC 51013-0817-01," retrieved September 3, 2026, https://drugdashboards.com/drug/51013081701.
Free to cite with attribution — see how the data is put together.