Drug interactions
Levodopa inhaled + Lurasidone
Severity: Major
Levodopa inhaled and Lurasidone: major 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
Lurasidone blocks dopamine D2 receptors and can counteract the effect of levodopa, so Parkinson's symptoms may worsen. Levodopa may in turn aggravate psychosis.
What this interaction means in plain words
Levodopa inhaled and Lurasidone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Pharmacodynamic antagonism between D2 receptor blockade and dopamine replacement.
What to do
Avoid the combination if possible. If an antipsychotic is required in Parkinson's disease, use agents with lower D2 affinity such as quetiapine or clozapine, and monitor motor function.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Lurasidone
- Apalutamide + Lurasidone Contraindicated
- Atazanavir + Lurasidone Contraindicated
- Carbamazepine + Lurasidone Contraindicated
- Clarithromycin + Lurasidone Contraindicated
- Cobicistat + Lurasidone Contraindicated
- Conivaptan + Lurasidone Contraindicated
Frequently asked questions
Can I take Levodopa inhaled with Lurasidone?
MediHelp rates the interaction as major. Levodopa inhaled and Lurasidone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Lurasidone blocks dopamine D2 receptors and can counteract the effect of levodopa, so Parkinson's symptoms may worsen. Levodopa may in turn aggravate psychosis.
How serious is the interaction between Levodopa inhaled and Lurasidone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible. If an antipsychotic is required in Parkinson's disease, use agents with lower D2 affinity such as quetiapine or clozapine, and monitor motor function.
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.
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