Product Information
GNP NIGHTTIME SLEEP AID 50 MG is a generic product labeled by AmerisourceBergen, priced at $0.1171 per EA under NDC 46122077564. Its NADAC has been published 51 times since Sep 3, 2025.
Strength
50 mg/1
Manufacturer
AmerisourceBergenNDC
46122077564
Classification
Generic
Dosage Form
CAPSULE, LIQUID FILLED
Route
ORAL
Effective Date
8/19/2026
Active Ingredients
DIPHENHYDRAMINE HYDROCHLORIDEApproval Type
OTC MONOGRAPH DRUG
FDA Application
M010On Market Since
4/11/2024
Pharmacological Classes
Price Statistics
The NADAC for GNP NIGHTTIME SLEEP AID 50 MG has been published 51 times since Sep 3, 2025, and over the history we have for it it has risen 32.6%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.1171 per EA |
|---|---|
| All-time high | $0.1204 (Aug 12, 2026) |
| All-time low | $0.0853 (Sep 17, 2025) |
| 52-week high | $0.1204 |
| 52-week low | $0.0853 |
| Median price | $0.1040 |
| Average price | $0.1032 |
| Largest weekly change | +13.4% (Oct 22, 2025) |
| Weeks tracked | 51 |
| Tracking since | Sep 3, 2025 |
Generic Alternatives
The matcher finds 4 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 83% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
Frequently asked questions
What is the NADAC price of GNP NIGHTTIME SLEEP AID 50 MG?
The current National Average Drug Acquisition Cost (NADAC) for GNP NIGHTTIME SLEEP AID 50 MG, manufactured by AmerisourceBergen, is $0.1171 per EA (NDC 46122077564), effective Aug 19, 2026.
How has the price of GNP NIGHTTIME SLEEP AID 50 MG changed over time?
Over the history we have for it, the NADAC for GNP NIGHTTIME SLEEP AID 50 MG has risen 32.6%. It has been tracked across 51 weekly CMS publications since Sep 3, 2025.
What are the highest and lowest recorded NADAC prices for GNP NIGHTTIME SLEEP AID 50 MG?
Since Sep 3, 2025, the NADAC for GNP NIGHTTIME SLEEP AID 50 MG has ranged from a low of $0.0853 (Sep 17, 2025) to a high of $0.1204 (Aug 12, 2026), with a median of $0.1040 per EA.
Are there cheaper alternatives to GNP NIGHTTIME SLEEP AID 50 MG?
Yes. 4 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, PHARBEDRYL 50 MG CAPSULE, is $0.0197 per EA — about 83% below GNP NIGHTTIME SLEEP AID 50 MG.
Who manufactures GNP NIGHTTIME SLEEP AID 50 MG?
GNP NIGHTTIME SLEEP AID 50 MG (NDC 46122077564) is labeled by AmerisourceBergen, and CMS classifies it as a generic product.