Interferon gamma-1b

  • Part D specialty tier in 80% of formularies (2026Q3)
  • Biologic
  • ACTIMMUNE

Therapy management checklist

Screening, baseline and ongoing monitoring with the label's stated frequency, hold and discontinue criteria, and counseling points, each quoted from the FDA label.

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Storage and cold chain

Interferon gamma-1b: storage and handling

Refrigerate
Yes, as the label states
Label statement
Store vials in the refrigerator at 2 to 8 °C (36 °F – 46 °F).
Freezing
Do not freeze
Label statement
Do Not Freeze.
Room temperature
up to 12 hours
Label statement
An unused vial of ACTIMMUNE can be stored at room temperature up to 12 hours prior to use.
Back into the refrigerator
Not allowed
Label statement
Do not return to the refrigerator.
Light
Not addressed
Shaking
Do not shake
Label statement
Do Not Shake .

Temperature excursion helper

Answers only from this label's storage statements. It does not judge whether a product is still usable beyond what the label states.

Beyond the room-temperature allowance the label states. The label does not state stability beyond it.

Entered: 1 day at up to 77°F (25°C).

An unused vial of ACTIMMUNE can be stored at room temperature up to 12 hours prior to use.
Do not return to the refrigerator.
Discard vials if not used within the 12 hour period.

Contact the manufacturer about this product; the label text ClinDose has does not print a phone number for it.

All storage statements on the label (6)
  • Store vials in the refrigerator at 2 to 8 °C (36 °F – 46 °F).
  • Do Not Freeze.
  • Do Not Shake .
  • An unused vial of ACTIMMUNE can be stored at room temperature up to 12 hours prior to use.
  • Discard vials if not used within the 12 hour period.
  • Do not return to the refrigerator.

FDA label version 11, effective March 30, 2026. DailyMed

Dosing and titration calendar

Built only from the schedules the label states (loading, titration, day schedules, cycles and weight bands). Steps the label states in words the calendar cannot place are shown, not guessed.

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Medicare Part D coverage

100%of plans list it
81%of those: prior authorization
0%step therapy
0%quantity limit
97%specialty tier

5,496 Part D plans, CMS formulary files 2026Q3. Look up tier, PA, step therapy and quantity limits by plan

Patient assistance

No manufacturer program page is listed for this drug yet.

Independent foundations and the full directory (checked 2026-11-06). Eligibility and amounts are set by each program; open its page for them.

For licensed clinicians. Use with clinical judgment. Statements are quoted from the FDA label; confirm against the label for the product you are using.