Drug interactions
Artemether / lumefantrine + Exemestane
Severity: Moderate
Artemether / lumefantrine and Exemestane: 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
Artemether is a CYP3A4 inducer and exemestane is cleared mainly by CYP3A4. Lower exemestane exposure could reduce its estrogen-suppressing effect, though a short antimalarial course limits the impact.
What this interaction means in plain words
Artemether / lumefantrine and Exemestane 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.
Why it happens
Induction of CYP3A4 increases exemestane metabolism and lowers its plasma levels.
What to do
The antimalarial course is brief, so continue exemestane at the usual dose and monitor for reduced efficacy if exposure is prolonged. Consider the labeled 50 mg daily dose only if a strong inducer is used long term.
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?
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Other interactions of Exemestane
Frequently asked questions
Can I take Artemether / lumefantrine with Exemestane?
MediHelp rates the interaction as moderate. Artemether / lumefantrine and Exemestane 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. Artemether is a CYP3A4 inducer and exemestane is cleared mainly by CYP3A4. Lower exemestane exposure could reduce its estrogen-suppressing effect, though a short antimalarial course limits the impact.
How serious is the interaction between Artemether / lumefantrine and Exemestane?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: The antimalarial course is brief, so continue exemestane at the usual dose and monitor for reduced efficacy if exposure is prolonged. Consider the labeled 50 mg daily dose only if a strong inducer is used long term.
What other medicines interact with Exemestane?
MediHelp also lists interactions of Exemestane with, for example, Bazedoxifene-conjugated estrogens, Desogestrel-ethinyl estradiol, Estradiol. The full list is on the Exemestane page.
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