Product Information
THEOPHYLLINE ER 600 MG TABLET is a generic product labeled by Westminster Pharmaceuticals LLC, priced at $1.3952 per EA under NDC 69367041501. Its NADAC has been published 24 times since Jan 14, 2026.
Strength
600 mg/1
Manufacturer
Westminster Pharmaceuticals LLCNDC
69367041501
Classification
Generic
Dosage Form
TABLET, EXTENDED RELEASE
Route
ORAL
Last Updated
1/14/2026
Active Ingredients
THEOPHYLLINE ANHYDROUSApproval Type
Generic (ANDA)
FDA Application
ANDA040560On Market Since
11/25/2025
Pharmacological Classes
Price Statistics
The NADAC for THEOPHYLLINE ER 600 MG TABLET has been published 24 times since Jan 14, 2026, and over the history we have for it it has held within roughly two percent of its current level. The table below summarizes its recorded NADAC range and movement.
| Current price | $1.3952 per EA |
|---|---|
| All-time high | $1.3952 (Jun 24, 2026) |
| All-time low | $1.3952 (Jan 14, 2026) |
| 52-week high | $1.3952 |
| 52-week low | $1.3952 |
| Median price | $1.3952 |
| Average price | $1.3952 |
| Largest weekly change | 0.0% (Jan 21, 2026) |
| Weeks tracked | 24 |
| Tracking since | Jan 14, 2026 |
Generic Alternatives
No other NADAC-published product shares this drug's active ingredient, strength, and dosage form. Compare the broader picture on the Theophylline Anhydrous market page.
Lowest-Cost Alternatives
No alternatives available
Frequently asked questions
What is the NADAC price of THEOPHYLLINE ER 600 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for THEOPHYLLINE ER 600 MG TABLET, manufactured by Westminster Pharmaceuticals LLC, is $1.3952 per EA (NDC 69367041501), effective Jun 24, 2026.
How has the price of THEOPHYLLINE ER 600 MG TABLET changed over time?
Over the history we have for it, the NADAC for THEOPHYLLINE ER 600 MG TABLET has held within roughly two percent of its current level. It has been tracked across 24 weekly CMS publications since Jan 14, 2026.
What are the highest and lowest recorded NADAC prices for THEOPHYLLINE ER 600 MG TABLET?
Since Jan 14, 2026, the NADAC for THEOPHYLLINE ER 600 MG TABLET has ranged from a low of $1.3952 (Jan 14, 2026) to a high of $1.3952 (Jun 24, 2026), with a median of $1.3952 per EA.
Are there cheaper alternatives to THEOPHYLLINE ER 600 MG TABLET?
No other NADAC-published product currently shares the active ingredient, strength, and dosage form of THEOPHYLLINE ER 600 MG TABLET, so no direct lower-cost alternative is listed.
Who manufactures THEOPHYLLINE ER 600 MG TABLET?
THEOPHYLLINE ER 600 MG TABLET (NDC 69367041501) is labeled by Westminster Pharmaceuticals LLC, and CMS classifies it as a generic product.
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