Product Information
GNP 8 HOUR PAIN RLF ER 650 MG is a generic product labeled by AmerisourceBergen, priced at $0.0631 per EA under NDC 46122063071. Its NADAC has been published 66 times since May 21, 2025.
FDA first approved this application on Apr 16, 2019.
Strength
650 mg/1
Manufacturer
AmerisourceBergenNDC
46122063071
Classification
Generic
Dosage Form
TABLET, EXTENDED RELEASE
Route
ORAL
Effective Date
8/19/2026
Active Ingredients
ACETAMINOPHENApproval Type
Generic (ANDA)
FDA Application
ANDA211544FDA Approved
4/16/2019
On Market Since
1/13/2020
Price Statistics
The NADAC for GNP 8 HOUR PAIN RLF ER 650 MG has been published 66 times since May 21, 2025, and over the history we have for it it has declined 7.9%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0631 per EA |
|---|---|
| All-time high | $0.0686 (Jan 14, 2026) |
| All-time low | $0.0629 (Jul 22, 2026) |
| 52-week high | $0.0686 |
| 52-week low | $0.0629 |
| Median price | $0.0672 |
| Average price | $0.0665 |
| Largest weekly change | -2.5% (Apr 22, 2026) |
| Weeks tracked | 66 |
| Tracking since | May 21, 2025 |
Generic Alternatives
The matcher finds 7 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 5% 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 8 HOUR PAIN RLF ER 650 MG?
The current National Average Drug Acquisition Cost (NADAC) for GNP 8 HOUR PAIN RLF ER 650 MG, manufactured by AmerisourceBergen, is $0.0631 per EA (NDC 46122063071), effective Aug 19, 2026.
How has the price of GNP 8 HOUR PAIN RLF ER 650 MG changed over time?
Over the history we have for it, the NADAC for GNP 8 HOUR PAIN RLF ER 650 MG has declined 7.9%. It has been tracked across 66 weekly CMS publications since May 21, 2025.
What are the highest and lowest recorded NADAC prices for GNP 8 HOUR PAIN RLF ER 650 MG?
Since May 21, 2025, the NADAC for GNP 8 HOUR PAIN RLF ER 650 MG has ranged from a low of $0.0629 (Jul 22, 2026) to a high of $0.0686 (Jan 14, 2026), with a median of $0.0672 per EA.
Are there cheaper alternatives to GNP 8 HOUR PAIN RLF ER 650 MG?
Yes. 7 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, QC ARTHRITIS PAIN ER 650 MG, is $0.0599 per EA — about 5% below GNP 8 HOUR PAIN RLF ER 650 MG.
Who manufactures GNP 8 HOUR PAIN RLF ER 650 MG?
GNP 8 HOUR PAIN RLF ER 650 MG (NDC 46122063071) is labeled by AmerisourceBergen, and CMS classifies it as a generic product.