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Live data · NADAC + Part D CY24 · reviewed daily

Theophylline (Theo-24)

Methylxanthine class · 18 generic manufacturers · 38 ANDAs filed at FDA.

First FDA approval2006-04-21
Generic availableYes · 18 mfrs
Shortage statusNone
340B exposureunknown
Last updated
NADAC: weekly (every Wed)Part D Formulary: quarterlyPart D Spend: annual (CY24)Orange Book: weeklyShortages: daily
At a glance · the numbers a plan sponsor wants on screen one
Lowest NADAC
$0.099/unit
20 NDCs benchmarked, lowest of all strengths.
Average NADAC
$0.542
Across all dosage forms in distribution.
Highest NADAC
$1.10
Wide spread — brand-strength NDCs still in market.
Plans with PA
0 / 329
Zero PA friction — switching is purely formulary.

Questions a plan sponsor actually asks.

FAQPage schema11 entries indexed · 4 visible
What is Theophylline used for?

Theophylline is a Methylxanthine medication tracked in Medicare Part D.

Is there a generic for Theophylline?

Yes. 38 ANDAs filed at FDA, 18 generic manufacturers currently shipping.

How much does my plan pay for Theophylline?

Across 329 Part D plans, Theophylline averages $0.542/unit (NADAC). Lowest available: $0.099/unit. Highest in distribution: $1.10/unit.

Is Theophylline on the FDA shortage list?

No. Theophylline is not currently on the FDA Drug Shortage Database.

7 additional drug-specific questions are indexed in the page's FAQPage schema for search engines and LLM crawlers, beyond what renders visually above. View page source for the complete JSON-LD.

Sources · every number above traces back.

Last refresh30 May 2026

Drug identity, dosage forms, brand names: openFDA NDC Directory · First approval, ANDA history: FDA Orange Book (10 approvals on file) · NADAC unit costs: CMS NADAC weekly file (20 NDCs benchmarked) · Formulary tier and PA placement: CMS Part D Formulary file (329 plans) · Annualized spend, claims, beneficiaries: CMS Part D Spending Dashboard · Shortage status: FDA Drug Shortage Database · 340B exposure: HRSA OPAIS. Methodology and reproducibility notes on /methodology.