How do you pay?

How to pay the least

Lowest posted price

$27.9 a fill

Relenza from GSK, without insurance.

  1. Sign up for GSK for You Pharmacy (Direct to You cash-pay program).Sign up on gskforyou.com 

Free from the maker, if you qualify GSK Patient Assistance Program (prescription medicines). Or call 1-866-728-4368.

See if you qualify 

We didn’t find one.

Compare every option

Question
Brand nameRelenza
Authorized genericzanamivir
Regular genericzanamivir
What you’d pay
Cash price$27.9a fill from the maker
Not soldThere isn’t one
Not soldNone found
Same as Relenza?
The original
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Brand nameThe maker’s cash price

GSK for You Pharmacy (Direct to You cash-pay program)

Cash price from GSK

No insurance $27.9 a fill

Sign up on gskforyou.com 

From the maker’s offer on gskforyou.com, checked November 2, 2026. Check the maker’s page for who can use it.

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 price above. You can usually use one or the other on a fill, not both.

Brand nameTrumpRx.gov price

TrumpRx.gov, the federal government’s drug price site, lists Relenza at a price its maker agreed to, for people paying without insurance.

  • TrumpRx.gov $52.90Diskhaler, 5 mgTrumpRx sends you to GSK For You, GSK’s own program, to order it.

From TrumpRx.gov, read October 28, 2026. Its page opens on this price; other strengths and amounts are priced there too. With insurance, check your co-pay first: it may be lower.

Authorized genericNot sold

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

RELENZA, an influenza virus neuraminidase inhibitor (NAI), is indicated for:

Treatment of acute, uncomplicated influenza type A and B infections in patients aged 7 years and older who have been symptomatic for no more than 2 days.

Prophylaxis of influenza in patients aged 5 years and older.

Important Limitations of Use:

Not recommended for treatment or prophylaxis of influenza in:

  • Individuals with underlying airways disease.

Not proven effective for:

  • Treatment in individuals with underlying airways disease.
  • Prophylaxis in nursing home residents.

Not a substitute for annual influenza vaccination.

Consider available information on influenza drug susceptibility patterns and treatment effects when deciding whether to use RELENZA.

Source: the FDA label for Relenza (GlaxoSmithKline LLC), October 24, 2023. Full label on DailyMed 

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