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Drug interactions

Lanthanum carbonate + Red yeast rice

Severity: Minor

Lanthanum carbonate and Red yeast rice: minor 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

Lanthanum is a polyvalent cation that can bind to some drugs in the gut and reduce their absorption. A reduced effect of monacolin K is possible, but the interaction is largely theoretical.

What this interaction means in plain words

Lanthanum carbonate and Red yeast rice have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Lanthanum carbonate belongs to Miscellaneous; Red yeast rice belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Possible binding of red yeast rice constituents by lanthanum in the gastrointestinal tract, reducing absorption.

What to do

Separate dosing by at least 2 hours, taking red yeast rice before or after lanthanum. Monitor lipid response if the combination is continued.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Lanthanum carbonate with Red yeast rice?

MediHelp rates the interaction as minor. Lanthanum carbonate and Red yeast rice have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Lanthanum is a polyvalent cation that can bind to some drugs in the gut and reduce their absorption. A reduced effect of monacolin K is possible, but the interaction is largely theoretical.

How serious is the interaction between Lanthanum carbonate and Red yeast rice?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate dosing by at least 2 hours, taking red yeast rice before or after lanthanum. Monitor lipid response if the combination is continued.

What other medicines interact with Red yeast rice?

MediHelp also lists interactions of Red yeast rice with, for example, Ritonavir, Saquinavir, Tipranavir. The full list is on the Red yeast rice page.

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