idelalisib
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
4 FDA-registered drug labelers
Gilead Sciences, Inc.
Natco Pharma Limited
Patheon Inc.
Zhejiang Lepu Pharmaceutical Co., Ltd.
Why It Matters
Sectors
Health
Downstream Uses
Appears in 1 drug and cosmetic product listings (FDA).
- •Zydelig
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No Shortage
Shortage History
Each row is a separate manufacturer's FDA shortage filing — not a timeline for the drug as a whole. Multiple "current" entries are normal: each manufacturer/NDC files independently. Status reflects the manufacturer's report; reason describes their supply situation (Available, Unavailable, or to be discontinued).
to be discontinued
Idelalisib Tablet
04/07/2026Chemical Identity
CAS870281-82-6
PubChem CID11625818
DTXSIDDTXSID701007266
FormulaC22H18FN7O
Mol. Weight415.4 g/mol
SMILESCCC(C1=NC2=C(C(=CC=C2)F)C(=O)N1C3=CC=CC=C3)NC4=NC=NC5=C4NC=N5
Data Sources
116258182026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/idelalisib/cids/JSON
Archive: data/sources/pubchem_name/idelalisib.json
CAS 870281-82-62026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
CAS 870281-82-62026-06-13
https://api.fda.gov/drug/shortages.json
Archive: data/sources/fda/shortages/shortages.json