Pheburane savings card: as little as $0 a prescription with commercial insurance

How to pay the least

Ask for the cash price

Pheburane

We didn’t find one.

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

Compare every option

Brand namePheburane

Authorized genericsodium phenylbutyrate

Regular genericsodium phenylbutyrate

What you’d pay

Cash priceAsk the pharmacy

Not soldThere isn’t one

Not soldNone found

Same as Pheburane?

The original

–

Brand nameThe maker’s card

UNIK Support Program (Pheburane Copay Program)

Savings card from Medunik

No insuranceNeeds insuranceNo cash price listed.

Insurance · as little as $0 a prescription

Or call 1-877-791-1171.

In the maker’s words

“With our copay program, eligible patients pay as little as $0 per Pheburane ® prescription.”

From the maker’s offer on pheburane.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 Pheburane itself, from the same company, sold without the brand name, and usually for less. For now Pheburane 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

Urea cycle disorders

What the FDA label says

PHEBURANE is a nitrogen-binding agent indicated as adjunctive therapy to standard of care, which includes dietary management, for the chronic management of adult and pediatric patients with urea cycle disorders (UCDs), involving deficiencies of carbamylphosphate synthetase (CPS), ornithine transcarbamylase (OTC) or argininosuccinic acid synthetase (AS).

Limitations of Use PHEBURANE is not indicated for the treatment of acute hyperammonemia.

Source: the FDA label for Pheburane (Medunik USA), July 17, 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/pheburane/