Tybost savings card: as little as $0 a month with commercial insurance

How to pay the least

Ask for the cash price

Tybost

We didn’t find one.

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

Compare every option

Brand nameTybost

Authorized genericcobicistat

Regular genericcobicistat

What you’d pay

Cash priceAsk the pharmacy

Not soldThere isn’t one

Not soldNone found

Same as Tybost?

The original

–

Brand nameThe maker’s card

Gilead Advancing Access Co-pay Savings Program

Savings card from Gilead Sciences

No insuranceNeeds insuranceNo cash price listed.

Insurance · as little as $0 a month

Or call 1-866-664-5327.

In the maker’s words

“Eligible patients could pay as little as $0 per month.”

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

HIV, as a booster for atazanavir or darunavir

What the FDA label says

TYBOST is a CYP3A inhibitor indicated to increase systemic exposure of atazanavir or darunavir (once daily dosing regimen) in combination with other antiretroviral agents in the treatment of HIV-1 infection in adults and in pediatric patients weighing at least 14 kg.

Limitations of Use:

TYBOST is not interchangeable with ritonavir to increase systemic exposure of darunavir 600 mg twice daily, fosamprenavir, saquinavir, or tipranavir due to lack of exposure data. The use of TYBOST is not recommended with darunavir 600 mg twice daily, fosamprenavir, saquinavir, or tipranavir.
Complex or unknown mechanisms of drug interactions preclude extrapolation of ritonavir drug interactions to certain TYBOST interactions. TYBOST and ritonavir when administered with either atazanavir or darunavir may result in different drug interactions when used with concomitant medications.

Source: the FDA label for Tybost (Gilead Sciences, Inc.), February 10, 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/tybost/