rifampin
Drug ingredientActive ShortageThis drug ingredient is in active FDA shortage. At least one manufacturer cannot meet demand.
Where It Comes From
24 FDA-registered drug labelers
A-S Medication Solutions
American Health Packaging
Asclemed USA, Inc.
Bryant Ranch Prepack
Chartwell RX, LLC
CKD BIO Corp. Ansan Factory
CKD Bio Corporation
Coupler LLC
DARMERICA, LLC
EPIC PHARMA, LLC
EUROAPI Italy SRL
Fresenius Kabi USA, LLC
Hikma Pharmaceuticals USA Inc.
Kalchem International inc
Luohe Chief Pharmaceutical Co., Ltd.
LUPIN LIMITED
Lupin Pharmaceuticals, Inc.
Major Pharmaceuticals
MEDISCA Inc.
Mylan Institutional LLC
OLON ACTIVE PHARMACEUTICAL INGREDIENTS INDIA PRIVATE LIMITED
Olon SpA
PURACAP LABORATORIES LLC DBA BLU PHARMACEUTICALS
Sanofi-Aventis U.S. LLC
Why It Matters
Sectors
Health
Downstream Uses
Appears in 2 drug and cosmetic product listings (FDA).
- •Rifampin
- •Rifadin IV
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."
Active 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
Rifampin Injection
04/20/2026current
Rifampin Capsule
12/22/2021Unavailable
current
Rifampin Injection
02/17/2021Available
current
Rifampin Capsule
12/22/2021Limited Availability
current
Rifampin Injection
02/17/2021Unavailable
current
Rifampin Capsule
12/22/2021Available
Chemical Identity
CAS13292-46-1
PubChem CID135398735
DTXSIDDTXSID6021244
FormulaC43H58N4O12
Mol. Weight822.9 g/mol
SMILESCC1C=CC=C(C(=O)NC2=C(C(=C3C(=C2O)C(=C(C4=C3C(=O)C(O4)(OC=CC(C(C(C(C(C(C1O)C)O)C)OC(=O)C)C)OC)C)C)O)O)C=NN5CCN(CC5)C)C
Data Sources
1353987352026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/rifampin/cids/JSON
Archive: data/sources/pubchem_name/rifampin.json
CAS 13292-46-12026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
CAS 13292-46-12026-06-13
https://api.fda.gov/drug/shortages.json
Archive: data/sources/fda/shortages/shortages.json