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Live data · NADAC + Part D CY24 · reviewed daily

Interferon Gamma-1B (ACTIMMUNE)

Interferon gamma class · 0 generic manufacturers · 0 ANDAs filed at FDA.

First FDA approval2013-12-01
Generic availableNo (brand-only)
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
/unit
0 NDCs benchmarked, lowest of all strengths.
Average NADAC
Across all dosage forms in distribution.
Highest NADAC
Range is tight.
Plans with PA
308 / 329
Limited PA friction.

Questions a plan sponsor actually asks.

FAQPage schema8 entries indexed · 4 visible
What is Interferon Gamma-1B used for?

Interferon Gamma-1B is a Interferon gamma medication tracked in Medicare Part D.

Is there a generic for Interferon Gamma-1B?

No. Interferon Gamma-1B is brand-only with no generic equivalents currently in market.

How much does my plan pay for Interferon Gamma-1B?

NADAC pricing data not currently available for this drug.

Is Interferon Gamma-1B on the FDA shortage list?

No. Interferon Gamma-1B is not currently on the FDA Drug Shortage Database.

4 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 · NADAC unit costs: CMS NADAC weekly file · 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.