Drug interactions
Escitalopram + Posaconazole
Severity: Moderate
Escitalopram and Posaconazole: 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
Both escitalopram and posaconazole can prolong the QT interval, so combined use raises the risk of torsades de pointes. Posaconazole may slightly increase escitalopram levels, though CYP3A4 is only one of several elimination pathways.
What this interaction means in plain words
Escitalopram and Posaconazole 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.
Escitalopram belongs to Central Nervous System; Posaconazole belongs to Anti Fungals.
Why it happens
Additive QT prolongation, with minor CYP3A4 inhibition affecting escitalopram clearance.
What to do
Obtain baseline ECG, correct hypokalemia and hypomagnesemia, and monitor QTc. Keep escitalopram at the lowest effective dose, especially in older patients.
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 Posaconazole
- Artemether + Posaconazole Contraindicated
- Avanafil + Posaconazole Contraindicated
- Cobimetinib + Posaconazole Contraindicated
- Conivaptan + Posaconazole Contraindicated
- Dihydroergotamine intranasal + Posaconazole Contraindicated
- Dihydroergotamine + Posaconazole Contraindicated
Other interactions of Escitalopram
- Cisapride + Escitalopram Contraindicated
- Citalopram + Escitalopram Contraindicated
- Escitalopram + Isocarboxazid Contraindicated
- Escitalopram + Methylene blue Contraindicated
- Escitalopram + Phenelzine Contraindicated
- Escitalopram + Pimozide Contraindicated
Frequently asked questions
Can I take Escitalopram with Posaconazole?
MediHelp rates the interaction as moderate. Escitalopram and Posaconazole 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. Both escitalopram and posaconazole can prolong the QT interval, so combined use raises the risk of torsades de pointes. Posaconazole may slightly increase escitalopram levels, though CYP3A4 is only one of several elimination pathways.
How serious is the interaction between Escitalopram and Posaconazole?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain baseline ECG, correct hypokalemia and hypomagnesemia, and monitor QTc. Keep escitalopram at the lowest effective dose, especially in older patients.
What other medicines interact with Posaconazole?
MediHelp also lists interactions of Posaconazole with, for example, Artemether, Avanafil, Cobimetinib. The full list is on the Posaconazole page.
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