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ATC L01EM01 · Phosphatidylinositol-3-Kinase (Pi3K) Inhibitors · updated 2 Nov 2026

Idelalisib shortage

As of 2 Nov 2026, Idelalisib has a reported shortage in 1 of the 16 countries we track (United States), covering 2 products from 1 company.

Is there an Idelalisib shortage?

Yes. As of 2 Nov 2026, Idelalisib is reported short in 1 of the 16 countries we track: United States. No company has given a return date.

Countries1/16
Products2packs or presentations
Companies11 listed
Short since7 Apr 20267 months ago
Earliest returnnot givencompany estimate
Main reasonNot stated
United States2 products shortCanadaNo reported shortageGermanyNo reported shortageFranceNo reported shortageItalyNo reported shortageSpainNo reported shortageIrelandNo reported shortageAustriaNo reported shortageBelgiumNo reported shortageSwitzerlandNo reported shortageCzechiaNo reported shortageNorwayNo reported shortageSwedenNo reported shortageJapanNo reported shortageNew ZealandNo reported shortageAustraliaNo reported shortage

Timeline

United States
Zydelig, Tablet, 100 mg (NDC 61958-1701-1)Zydelig, Tablet, 100 mg (NDC 61958-1701-1)Zydelig, Tablet, 150 mg (NDC 61958-1702-1)Zydelig, Tablet, 150 mg (NDC 61958-1702-1)today

Solid bars run from the reported start to today; faded bars show the time left until the expected return. An arrow means no return date was given.

Which companies are short

products short, all countries
Gilead2 GILD

Listed: Gilead GILD · Nasdaq

Compared with similar medicines

ATC group L01EM · Phosphatidylinositol-3-Kinase (Pi3K) Inhibitors
Alpelisib1/16Idelalisib1/16

Affected products

CountryProductCompanySinceExpected backReason
USZydelig, Tablet, 100 mg (NDC 61958-1701-1) discontinuationGilead Sciences, Inc.7 Apr 2026not givenNot stated
USZydelig, Tablet, 150 mg (NDC 61958-1702-1) discontinuationGilead Sciences, Inc.7 Apr 2026not givenNot stated

"Expected back" is the date the company gave the authority, when it gave one. Ask a pharmacist about alternatives.

Questions

Is there an Idelalisib shortage?

Yes. As of 2 Nov 2026, Idelalisib is reported short in 1 of the 16 countries we track: United States. No company has given a return date.

When will Idelalisib be back in stock?

No return date has been given; United States: no date given. These are company estimates reported to each authority.

Why is Idelalisib in short supply?

The most common reason reported is: not stated. Reasons by product are listed in the table below.

Which companies have Idelalisib shortages?

Gilead.