Product Information
THEOPHYLLINE ER 300 MG TABLET is a generic product labeled by Glenmark Pharmaceuticals Inc., USA, priced at $0.3422 per EA under NDC 68462072101. Its NADAC has been published 266 times since Jul 21, 2021.
FDA first approved this application on Jun 3, 2021. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
The High Outlier badge above means this manufacturer's average price in the Theophylline market falls above Q3 + 1.5·IQR across all competing manufacturers. We only apply this flag in markets with four or more competitors. Full definition: glossary → outlier.
Strength
300 mg/1
Manufacturer
Glenmark Pharmaceuticals Inc., USANDC
68462072101
Classification
Generic
Dosage Form
TABLET, EXTENDED RELEASE
Route
ORAL
Effective Date
8/19/2026
Active Ingredients
THEOPHYLLINE ANHYDROUSApproval Type
Generic (ANDA)
FDA Application
ANDA212184FDA Approved
6/3/2021
TE Code
AB
On Market Since
6/3/2021
Pharmacological Classes
Price Statistics
The NADAC for THEOPHYLLINE ER 300 MG TABLET has been published 266 times since Jul 21, 2021, and over the history we have for it it has declined 88.5%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.3422 per EA |
|---|---|
| All-time high | $3.0928 (Jul 13, 2022) |
| All-time low | $0.3196 (May 20, 2026) |
| 52-week high | $0.5576 |
| 52-week low | $0.3196 |
| Median price | $1.5908 |
| Average price | $1.6068 |
| Largest weekly change | +88.5% (Aug 21, 2024) |
| Weeks tracked | 266 |
| Tracking since | Jul 21, 2021 |
Generic Alternatives
The matcher finds 9 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). 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.
Related Drugs
Same classification
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 Glenmark Pharmaceuticals Inc., USA, is $0.3422 per EA (NDC 68462072101), effective Aug 19, 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 88.5%. It has been tracked across 266 weekly CMS publications since Jul 21, 2021.
What are the highest and lowest recorded NADAC prices for THEOPHYLLINE ER 300 MG TABLET?
Since Jul 21, 2021, the NADAC for THEOPHYLLINE ER 300 MG TABLET has ranged from a low of $0.3196 (May 20, 2026) to a high of $3.0928 (Jul 13, 2022), with a median of $1.5908 per EA.
Are there cheaper alternatives to THEOPHYLLINE ER 300 MG TABLET?
9 manufacturers publish a NADAC-priced product with the same active ingredient and strength as THEOPHYLLINE ER 300 MG TABLET in a comparable dosage form, but none are currently priced below it.
Who manufactures THEOPHYLLINE ER 300 MG TABLET?
THEOPHYLLINE ER 300 MG TABLET (NDC 68462072101) is labeled by Glenmark Pharmaceuticals Inc., USA, and CMS classifies it as a generic product.