Drug interactions
Darunavir + Lurasidone
Severity: Contraindicated
Darunavir and Lurasidone: contraindicated 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
Darunavir, usually given with ritonavir or cobicistat, strongly inhibits CYP3A4 and can substantially increase lurasidone concentrations. This raises the risk of dose-related adverse effects such as extrapyramidal symptoms, sedation and akathisia. Lurasidone labeling contraindicates strong CYP3A4 inhibitors.
What this interaction means in plain words
Darunavir and Lurasidone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Darunavir belongs to Anti Virals; Lurasidone belongs to Central Nervous System.
Why it happens
Inhibition of CYP3A4-mediated first-pass and systemic metabolism of lurasidone.
What to do
Do not coadminister; choose an antipsychotic less dependent on CYP3A4 metabolism, or use an alternative antiretroviral.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Darunavir and Lurasidone, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Lurasidone
- Apalutamide + Lurasidone Contraindicated
- Atazanavir + Lurasidone Contraindicated
- Carbamazepine + Lurasidone Contraindicated
- Clarithromycin + Lurasidone Contraindicated
- Cobicistat + Lurasidone Contraindicated
- Conivaptan + Lurasidone Contraindicated
Other interactions of Darunavir
- Alfuzosin + Darunavir Contraindicated
- Avanafil + Darunavir Contraindicated
- Darunavir + Dronedarone Contraindicated
- Darunavir + Eletriptan Contraindicated
- Darunavir + Ergotamine Contraindicated
- Darunavir + Flibanserin Contraindicated
Frequently asked questions
Can I take Darunavir with Lurasidone?
MediHelp rates the interaction as contraindicated. Darunavir and Lurasidone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Darunavir, usually given with ritonavir or cobicistat, strongly inhibits CYP3A4 and can substantially increase lurasidone concentrations. This raises the risk of dose-related adverse effects such as extrapyramidal symptoms, sedation and akathisia. Lurasidone labeling contraindicates strong CYP3A4 inhibitors.
How serious is the interaction between Darunavir and Lurasidone?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not coadminister; choose an antipsychotic less dependent on CYP3A4 metabolism, or use an alternative antiretroviral.
What other medicines interact with Lurasidone?
MediHelp also lists interactions of Lurasidone with, for example, Apalutamide, Atazanavir, Carbamazepine. The full list is on the Lurasidone 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.
