Diphenhydramine HCl · DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 · Capsule, Liquid Filled · Oral · Amerisource Bergen
NDC 46122-0775-64 · 1 BOTTLE in 1 CARTON / 60 CAPSULE, LIQUID FILLED in 1 BOTTLE · OTC MONOGRAPH DRUG · View full market →
21 companies supply this market — deep enough that no single failure threatens the supply. The price has jumped 33% in a year, to $0.1171 per unit — sharp rises like this often mean supply is already tightening. 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.
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.
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 →Estimates: latest NADAC unit price × quantity. Pharmacy acquisition cost only — excludes dispensing fees, markup, and insurance terms.
Nothing here is signaling trouble: several manufacturers, no current shortage, no recent serious recalls, stable pricing. In drug supply, boring is the good outcome.
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 4% 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 |
|---|---|---|---|
| Bionpharma Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| Shield Pharmaceuticals Corp | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| Valu Merchandisers Company | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| Wal-Mart Stores Inc | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| Allegiant Health | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Allegiant Health | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Amerisource Bergen | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Amerisource Bergen | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Apnar Pharma Lp | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Bionpharma Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Bionpharma Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Cardinal Health (Leader) 70000 | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Catalent Pharma Solutions, LLC | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Chain Drug Marketing Association Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Discount Drug Mart, Inc | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Discount Drug Mart, Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Dolgencorp Inc | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Kroger Company | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Meijer Distribution Inc | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Shield Pharmaceuticals Corp | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| The Kroger Co | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Topco Associates, LLC | DIPHENHYDRAMINE HCL 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Walgreen Company | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Walgreen Company | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Walgreens | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Whole Foods Market, INC. | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Whole Foods Market, INC. | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Ascent Consumer Products, Inc | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Jul 29, 2026 |
| Ascent Consumer Products, Inc | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg/1 | Jul 15, 2026 | Jul 29, 2026 |
| Chattem, Inc. | DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/1 | Jul 15, 2026 | Jul 29, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Nighttime Sleep-Aid — NDC 46122-0775-64," retrieved September 3, 2026, https://drugdashboards.com/drug/46122077564.
Free to cite with attribution — see how the data is put together.