Cholestyramine

Drug ingredient

CAS 11041-12-6

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

US productionNot reported

Import value, 2024$379M

Top sourceSweden 33%

EPA exempts this chemical from its production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 391400 · narrow

These shares come from HS customs code 391400, which covers 2 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

SE 33%SwedenCN 17%ChinaIT 11%ItalyCH 8%SwitzerlandIN 7%India

Finland
Norway
Taiwan
Netherlands
Spain
Hungary
Thailand
Belgium
Czech Republic
Denmark
Mexico
Poland
Slovenia
Malaysia
Portugal
Lithuania
Ireland
Singapore
Latvia

24 FDA-registered drug labelers

Ajanta Pharma USA Inc.

Ascend Laboratories, LLC

Bryant Ranch Prepack

Chartwell RX, LLC

DARMERICA, LLC

DSP

Endo USA, Inc.

EPIC PHARMA, LLC

Fagron Inc

ION EXCHANGE INDIA LIMITED

LETCO MEDICAL, LLC

Macleods Pharmaceuticals Limited

Medisca Inc.

Micro Labs Limited

Precision Dose, Inc.

Professional Compounding Centers of America dba PCCA

PURACAP LABORATORIES LLC DBA BLU PHARMACEUTICALS

Purolite LLC

Spectrum Laboratory Products, Inc

TAGI Pharma, Inc.

Upsher-Smith Laboratories, LLC

VALENS PHARMACHEM PRIVATE LIMITED

Zydus Lifesciences Limited

Zydus Pharmaceuticals (USA) Inc.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 7 drug and cosmetic product listings (FDA).

•cholestyramine powder for suspension
•Cholestyramine
•Cholestyramine Light
•Cholestyramine for Oral Suspension
•Choleystyramine Light
•Prevalite
•Questran

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

Rows group FDA shortage filings by drug product. Each manufacturer makes its own FDA shortage filing, so one product can carry several reports at once: Available, Limited Availability, Unavailable or to be discontinued.

to be discontinued
Cholestyramine Powder
Shortage listed since May 14, 2025

See all current drug shortages

Chemical Identity

CAS11041-12-6

PubChem CIDNot recorded

DTXSIDDTXSID601014553

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA TSCA InventoryRetrieved 2026-10-04
FDA Drug ShortagesRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Cholestyramine (CAS 11041-12-6) https://chemicalindependence.com/chemical/11041-12-6/ EPA TSCA Inventory: CAS 11041-12-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory FDA Drug Shortages: CAS 11041-12-6. Retrieved 2026-10-04. https://www.accessdata.fda.gov/scripts/drugshortages/ US Census international trade: HS 391400 for CAS 11041-12-6. Reporting year: 2024. https://usatrade.census.gov/