Product Information
THEOPHYLLINE ER 300 MG TABLET is a generic product labeled by Camber Pharmaceuticals Inc., priced at $0.3324 per EA under NDC 31722007701. Its NADAC has been published 112 times since May 8, 2024.
Strength
300 mg/1
Manufacturer
Camber Pharmaceuticals Inc.NDC
31722007701
Classification
Generic
Dosage Form
TABLET, EXTENDED RELEASE
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
THEOPHYLLINE ANHYDROUSApproval Type
Generic (ANDA)
FDA Application
ANDA217422On Market Since
9/8/2023
Pharmacological Classes
Price Statistics
The NADAC for THEOPHYLLINE ER 300 MG TABLET has been published 112 times since May 8, 2024, and over the history we have for it it has declined 77.1%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.3324 per EA |
|---|---|
| All-time high | $1.4513 (May 15, 2024) |
| All-time low | $0.3196 (May 20, 2026) |
| 52-week high | $0.6132 |
| 52-week low | $0.3196 |
| Median price | $0.5744 |
| Average price | $0.6414 |
| Largest weekly change | +88.5% (Aug 21, 2024) |
| Weeks tracked | 112 |
| Tracking since | May 8, 2024 |
Generic Alternatives
The matcher finds 9 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 9 manufacturers (up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Frequently asked questions
What is the NADAC price of THEOPHYLLINE ER 300 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for THEOPHYLLINE ER 300 MG TABLET, manufactured by Camber Pharmaceuticals Inc., is $0.3324 per EA (NDC 31722007701), effective Jun 24, 2026.
How has the price of THEOPHYLLINE ER 300 MG TABLET changed over time?
Over the history we have for it, the NADAC for THEOPHYLLINE ER 300 MG TABLET has declined 77.1%. It has been tracked across 112 weekly CMS publications since May 8, 2024.
What are the highest and lowest recorded NADAC prices for THEOPHYLLINE ER 300 MG TABLET?
Since May 8, 2024, the NADAC for THEOPHYLLINE ER 300 MG TABLET has ranged from a low of $0.3196 (May 20, 2026) to a high of $1.4513 (May 15, 2024), with a median of $0.5744 per EA.
Are there cheaper alternatives to THEOPHYLLINE ER 300 MG TABLET?
9 NADAC-published products share the same active ingredient, strength, and dosage form as THEOPHYLLINE ER 300 MG TABLET, but none are currently priced below it.
Who manufactures THEOPHYLLINE ER 300 MG TABLET?
THEOPHYLLINE ER 300 MG TABLET (NDC 31722007701) is labeled by Camber Pharmaceuticals Inc., and CMS classifies it as a generic product.
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