How do you pay?

How to pay the least

Ask for the cash price

Piasky

Piasky 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 Piasky’s cash price, and one or two other pharmacies too.
  2. Piasky’s savings card works only with insurance from a job or one you bought.

Free from the maker, if you qualify Genentech Patient Foundation. Do not have insurance coverage for their Genentech medicine and their household makes less than $150,000 per year Or call (888) 941-3331.

See if you qualify 

Compare every option

Question
Brand namePiasky
Authorized genericcrovalimab
Regular genericcrovalimab
What you’d pay
Cash priceAsk the pharmacy
Not soldThere isn’t one
Not soldAsk the pharmacy
Same as Piasky?
The original
–
–

Brand nameThe maker’s card

PiaSky Co-pay Program

Savings card from Genentech

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

The card takes up to $15,000 a year off your co-pay.

Sign up on piasky.com 

Or call 1-866-422-2377.

In the maker’s words

“With the PiaSky Co-pay Program, eligible patients with commercial insurance could pay as little as $0 per 30-day supply of PiaSky.”

From the maker’s offer on piasky.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 Piasky itself, from the same company, sold without the brand name, and usually for less. For now Piasky is the only choice; its maker’s savings card can lower what you pay.

See the brand name →

Regular genericNot sold

Piasky 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

PIASKY is a complement C5 inhibitor indicated for the treatment of adult and pediatric patients 13 years and older with paroxysmal nocturnal hemoglobinuria (PNH) and body weight of at least 40 kg

Source: the FDA label for Piasky (Genentech, Inc.), November 11, 2025. Full label on DailyMed 

Good to know