quinidine sulfate
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
8 FDA-registered drug labelers
Avanir Pharmaceuticals, Inc.
Buchler GmbH
Camber Pharmaceuticals, Inc.
EPIC PHARMA, LLC
Otsuka America Pharmaceutical, Inc
Patheon Inc.
Professional Compounding Centers of America dba PCCA
Spectrum Laboratory Products, Inc.
Why It Matters
Sectors
Health
Downstream Uses
Appears in 3 drug and cosmetic product listings (FDA).
- •Nuedexta
- •Quinidine Sulfate
- •Dextromethorphan hydrobromide and quinidine sulfate
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 FDA shortage records
Chemical Identity
CAS50-54-4
PubChem CID441326
DTXSIDDTXSID50883224
FormulaC40H50N4O8S
Mol. Weight746.9 g/mol
SMILESCOC1=CC2=C(C=CN=C2C=C1)C(C3CC4CCN3CC4C=C)O.COC1=CC2=C(C=CN=C2C=C1)C(C3CC4CCN3CC4C=C)O.OS(=O)(=O)O
Data Sources
4413262026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/quinidine sulfate/cids/JSON
Archive: data/sources/pubchem_name/quinidine sulfate.json
CAS 50-54-42026-04-24
https://www.epa.gov/tsca-inventory
Archive: data/sources/tsca/tsca_inventory.csv
bulk match2026-04-07
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json