How do you pay?

How to pay the least

Ask for the cash price

Plegridy

Plegridy 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.

  1. Ask your pharmacy for Plegridy’s cash price, and one or two other pharmacies too.
  2. Plegridy’s savings card works only with insurance from a job or one you bought.

Compare every option

Question
Brand namePlegridy
Authorized genericpeginterferon beta-1a
Regular genericpeginterferon beta-1a
What you’d pay
Cash priceAsk the pharmacy
Not soldThere isn’t one
Not soldAsk the pharmacy
Same as Plegridy?
The original
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–

Brand nameThe maker’s card

Biogen Copay Program

Savings card from Biogen

No insuranceNeeds insuranceNo cash price listed.
Insurance · as little as $0 a fill

Sign up on plegridy.com 

Or call 1-800-456-2255.

In the maker’s words

“Commercially insured: if you’re eligible, the Biogen Copay Program could lower your medication cost to as little as $0…”

From the maker’s offer on plegridy.com, checked November 2, 2026. Co-pay cards can’t be used with Medicare (including Medicare Advantage), Medicaid, TRICARE or VA.

Maker’s card or discount card?

A discount card like GoodRx lowers the pharmacy’s cash price, but for a brand-name drug that price often stays high. Compare it with the maker’s card above. You can usually use one or the other on a fill, not both.

Authorized genericNot sold

There isn’t one. An authorized generic is Plegridy itself, from the same company, sold without the brand name, and usually for less. For now Plegridy is the only choice; its maker’s savings card can lower what you pay.

See the brand name →

Regular genericNot sold

Plegridy 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. Generics usually come once the brand’s patents and exclusivity end. Until then, the maker’s savings card is the way to pay less.

See the brand name →

What it’s used for

What the FDA label says

PLEGRIDY is an interferon beta indicated for the treatment of relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults

Source: the FDA label for Plegridy (Biogen Inc.), November 12, 2025. Full label on DailyMed 

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