Brand-name prescription

Actimmune

interferon gamma-1b

Compare your options

Compare	ActimmuneBrand name	Authorized genericWithout the Actimmune name	Regular genericinterferon gamma-1b
What pharmacies pay	Price not listed	Not sold	Not sold
Same as Actimmune?	The original	–	–
Ways to save	Maker’s cardas little as $0 a fillwith commercial insurance	–	–
With insurance	Your plan’s brand co-pay	–	–

No authorized generic: There isn’t one.

No regular generic: Actimmune is a biologic. Biologics don’t have generics, but some have biosimilars or an unbranded version from the same maker. Ask your pharmacist or prescriber whether one is sold.

Co-pay cards can’t be used with Medicare (including Medicare Advantage), Medicaid, TRICARE or VA.

The maker’s savings card

Rx Maker’s savings card Amgen

Amgen Commercial Co-Pay Program (Amgen By Your Side)

With commercial insurance

as little as $0 a fill

No insurance

This card needs commercial insurance. The maker doesn’t list a cash price on this page.

Get it on amgenbyyourside.com

In the maker’s words

“Eligible patients with commercial insurance may pay as little as $0 out-of-pocket for each prescription fill through the Amgen Commercial Co-Pay Program.”

From the maker’s offer on amgenbyyourside.com, checked September 25, 2026. What you pay depends on your plan. Co-pay cards can’t be used with Medicare (including Medicare Advantage), Medicaid, TRICARE or VA.

Before you use a discount card

Discount cards like GoodRx take money off the pharmacy’s cash price. For a brand-name drug, that price is often still high. With commercial insurance, Actimmune’s own card may bring it to as little as $0 a fill.

Look up the discount-card price, then compare it with this estimate. You can use a maker’s card or a discount card, but usually not both on the same fill.

Good to know

There’s no authorized generic of Actimmune.
“Commercial insurance” means a plan from a job, from the marketplace, or one you buy yourself. A retiree plan that’s part of Medicare counts as Medicare. Co-pay cards can’t be used with Medicare (including Medicare Advantage), Medicaid, TRICARE or VA.
Most cards need a sign-up on the maker’s site, and many work only if your plan covers the drug. Then give the card’s details to your pharmacy.
Don’t stop or change a medicine without talking to your pharmacist or prescriber.