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Drug interactions

Cholestyramine + Fluvastatin

Severity: Moderate

Cholestyramine and Fluvastatin: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Cholestyramine binds fluvastatin in the gut and markedly reduces its absorption. This can diminish the statin's lipid-lowering effect if the two are taken together.

What this interaction means in plain words

Cholestyramine and Fluvastatin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Cholestyramine belongs to Cardiovascular; Fluvastatin belongs to Cardiovascular.

Evidence level: High

Why it happens

Cholestyramine binds fluvastatin in the gastrointestinal tract, reducing absorption.

What to do

Give fluvastatin at least 4 hours after cholestyramine. Monitor the lipid profile.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Cholestyramine with Fluvastatin?

MediHelp rates the interaction as moderate. Cholestyramine and Fluvastatin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Cholestyramine binds fluvastatin in the gut and markedly reduces its absorption. This can diminish the statin's lipid-lowering effect if the two are taken together.

How serious is the interaction between Cholestyramine and Fluvastatin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give fluvastatin at least 4 hours after cholestyramine. Monitor the lipid profile.

What other medicines interact with Fluvastatin?

MediHelp also lists interactions of Fluvastatin with, for example, Cyclosporine, Cyclosporin, Gemfibrozil. The full list is on the Fluvastatin page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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