Qalsody is given by a doctor or nurse and billed by the clinic, not a pharmacy. Your care team and your insurance decide which product you get, so ask them what you’d pay.

How do you pay?

How to pay the least

Given by your care team

Billed by the clinic

Qalsody is given by a doctor or nurse, not picked up at a pharmacy.

  1. Ask your care team or your plan what you’d pay before your visit.

Compare every option

Question
Brand nameQalsody
Authorized generictofersen
Regular generictofersen
What you’d pay
Cash priceAsk the pharmacy
Not soldThere isn’t one
Not soldNone found
Same as Qalsody?
The original
–
–

Brand nameThe maker’s card

Biogen Copay Program

Savings card from Biogen

Qalsody’s maker has a savings program. Its page doesn’t list a dollar amount.

Sign up on qalsody.com 

Or call 1-877-725-7639.

From the maker’s site, checked November 2, 2026. Check the maker’s page for who can use it.

Authorized genericNot sold

There isn’t one. An authorized generic is Qalsody itself, from the same company, sold without the brand name, and usually for less. For now Qalsody 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

What the FDA label says

QALSODY is an antisense oligonucleotide indicated for the treatment of amyotrophic lateral sclerosis (ALS) in adults who have a mutation in the superoxide dismutase 1 (SOD1) gene. This indication is approved under accelerated approval based on reduction in plasma neurofilament light chain observed in patients treated with QALSODY. Continued approval for this indication may be contingent upon verification of clinical benefit in confirmatory trial(s).

Source: the FDA label for Qalsody (Biogen Inc.), November 13, 2024. Full label on DailyMed 

Good to know