oseltamivir phosphate
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
54 FDA-registered drug labelers
A-S Medication Solutions
Ajanta Pharma USA Inc.
Alembic Pharmaceuticals Inc.
Alembic Pharmaceuticals Limited
Alvogen Inc.
American Pacific Corporation
Amneal Pharmaceuticals NY LLC
Asclemed USA, Inc.
Aurobindo Pharma Limited
AvKARE
AX Pharmaceutical Corp
Azico Biophore India Private Limited
BrightGene Bio-Medical Technology Co., Ltd.
Camber Pharmaceuticals, Inc.
Chromo Laboratories India Private Limited
Cipla Ltd.
Cipla USA, Inc
Dasami Lab Private Limited
Delpharm Milano Srl
EPIC PHARMA, LLC
Exelan Pharmaceuticals, Inc.
FUJIAN FUKANG PHARMACEUTICAL CO., LTD.
Genentech, Inc.
HEC Pharm USA Inc.
Hetero Labs Limited
Lannett Company, Inc.
Laurus Labs Limited
Leading Pharma, LLC
Lupin Pharmaceuticals, Inc.
Macleods Pharmaceuticals Limited
Matrix Pharmacorp Private Limited
MSN LABORATORIES PRIVATE LIMITED
MSN Life Sciences Private Limited
MSN Pharmachem Private Limited
Novadoz Pharmaceuticals LLC
NuCare Pharmaceuticals, Inc.
Oryza Pharmaceuticals Inc.
PATHEON API, INC
Patheon Manufacturing Services LLC
Preferred Pharmaceuticals Inc.
Proficient Rx LP
Redpharm Drug
REMEDYREPACK INC.
Shanghai Desano Chemical Pharmaceutical Co., Ltd.
Slate Run Pharmaceuticals, LLC
SOLARA ACTIVE PHARMA SCIENCES LIMITED
Sportpharm LLC
Sportpharm, Inc. dba Sportpharm
Strides Pharma Science Limited
Teva Pharmaceuticals USA, Inc.
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.
Zhejiang Poly Pharm. Co., Ltd.
Zydus Lifesciences Limited
Zydus Pharmaceuticals USA Inc.
Why It Matters
Sectors
Health
Downstream Uses
Appears in 5 drug and cosmetic product listings (FDA).
- •Oseltamivir Phosphate
- •Oseltamivir Phosphate for Oral Suspension
- •Oseltamivir
- •oseltamavir phosphate
- •Tamiflu
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
Oseltamivir Phosphate Capsule
07/08/2025to be discontinued
Oseltamivir Phosphate Capsule
09/30/2025Chemical Identity
CAS204255-11-8
PubChem CID78000
DTXSIDDTXSID0044230
FormulaC16H31N2O8P
Mol. Weight410.4 g/mol
SMILESCCC(CC)OC1C=C(CC(C1NC(=O)C)N)C(=O)OCC.OP(=O)(O)O
Data Sources
780002026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/oseltamivir phosphate/cids/JSON
Archive: data/sources/pubchem_name/oseltamivir phosphate.json
CAS 204255-11-82026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
CAS 204255-11-82026-06-13
https://api.fda.gov/drug/shortages.json
Archive: data/sources/fda/shortages/shortages.json