What the FDA labels say about taking them together
Cholestyramine and torsemide
Torsemide's FDA label of May 8, 2024 names cholestyramine in its drug interactions section; the cholestyramine label PlainMeds reads does not name torsemide. The torsemide label: “Concomitant use of torsemide and cholestyramine has not been studied in humans but, in a study in animals, coadministration of cholestyramine decreased the absorption of orally administered torsemide.”
Check it at the source: the cholestyramine FDA label on DailyMed (effective August 20, 2026, AiPing Pharmaceutical, Inc.); the torsemide FDA label on DailyMed (effective May 8, 2024, Aurobindo Pharma Limited).
What does the cholestyramine label say about torsemide?
Cholestyramine's label (effective August 20, 2026) does not name torsemide in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Cholestyramine), AiPing Pharmaceutical, Inc., effective August 20, 2026 (SPL set 214ea05f-de81-4026-9df9-4ce3820668ee), via openFDA; the full label on DailyMed
What does the torsemide label say about cholestyramine?
Torsemide label, drug interactionsConcomitant use of torsemide and cholestyramine has not been studied in humans but, in a study in animals, coadministration of cholestyramine decreased the absorption of orally administered torsemide.
Source: FDA drug label (Torsemide), Aurobindo Pharma Limited, effective May 8, 2024 (SPL set 55e88727-864e-4313-860c-31a6ca45168f), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Cholestyramine | Torsemide | |
|---|---|---|
| Labeled for | High cholesterol | High blood pressure, Heart failure |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $0.834 per packet Cholestyramine packet | $0.0636 per tablet 20 mg tablet |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once