Firdapse savings card: $0 a month with commercial insurance

How to pay the least

Ask for the cash price

Firdapse

We didn’t find one.

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

Compare every option

Brand nameFirdapse

Authorized genericamifampridine

Regular genericamifampridine

What you’d pay

Cash priceAsk the pharmacy

Not soldThere isn’t one

Not soldNone found

Same as Firdapse?

The original

–

Brand nameThe maker’s card

Catalyst Pathways

Savings card from Catalyst Pharmaceuticals

No insuranceNeeds insuranceNo cash price listed.

Insurance $0 a month

Or call 1-833-422-8259.

In the maker’s words

“If you have commercial insurance, Catalyst Pathways lowers out-of-pocket costs to $0/month.”

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

See the brand name →

Regular genericNot sold

We didn’t find one. 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

Lambert-Eaton myasthenic syndrome (LEMS)

What the FDA label says

FIRDAPSE is a potassium channel blocker indicated for the treatment of Lambert-Eaton myasthenic syndrome (LEMS) in adults and pediatric patients 6 years of age and older.

Source: the FDA label for Firdapse (Catalyst Pharmaceuticals, Inc.), April 16, 2026. Full label on DailyMed

Good to know

“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.

Prices checked November 2, 2026. Prices change: confirm with the pharmacy before you fill. drugalt.com/drug/firdapse/