HomeDutasterideDutasteride + Cholestyramine Light

Does Dutasteride Interact with Cholestyramine Light?

Dutasteride and Cholestyramine Light have a minor drug interaction according to U.S. FDA drug labeling data. Administration of cholestyramine does not affect the relative bioavailability of dutasteride. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Minor
Dutasteride Class
5-alpha Reductase Inhibitor
Cholestyramine Light Class
Bile Acid Sequestrant
Management
Generally manageable
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Dutasteride and your doctor is considering prescribing Cholestyramine Light (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Never stop or change either medication without first consulting your healthcare provider
💊 Dutasteride(Avodart)+💊 Cholestyramine Light(Questran)

Severity & Interaction Details

minor
Generally safe — minor interaction
Low clinical significance. Routine awareness is usually sufficient.
Severity scale
MinorContra
On record
Yes
Drug A class
5-alpha Reductase Inhibitor
Drug B class
Bile Acid Sequestrant
Source
NLP:dutasteride

What this means in plain English

Administration of cholestyramine does not affect the relative bioavailability of dutasteride.

About Dutasteride and Cholestyramine Light

Dutasteride is a 5-alpha Reductase Inhibitor, while Cholestyramine Light is a Bile Acid Sequestrant. You may recognize them by the brand names Avodart and Questran. Both medications are taken by mouth.

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.