Drug interactions
Clozapine + Levodopa inhaled
Severity: Moderate
Clozapine and Levodopa inhaled: 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
Clozapine's dopamine receptor blockade may reduce the effect of inhaled levodopa used for off episodes in Parkinson's disease. Clozapine is among the antipsychotics least likely to worsen motor symptoms, so the effect is usually modest.
What this interaction means in plain words
Clozapine and Levodopa inhaled 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
Pharmacodynamic antagonism at dopamine D2 receptors.
What to do
Monitor the response to inhaled levodopa and motor control, and use the lowest effective clozapine dose. Reassess the need for either drug if off episodes worsen.
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 Clozapine
- Clozapine + Deferiprone Contraindicated
- Clozapine + Irinotecan Contraindicated
- Clozapine + Pimozide Contraindicated
- Clozapine + Thioridazine Contraindicated
- Acalabrutinib + Clozapine Major
- Adagrasib + Clozapine Major
Frequently asked questions
Can I take Clozapine with Levodopa inhaled?
MediHelp rates the interaction as moderate. Clozapine and Levodopa inhaled 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. Clozapine's dopamine receptor blockade may reduce the effect of inhaled levodopa used for off episodes in Parkinson's disease. Clozapine is among the antipsychotics least likely to worsen motor symptoms, so the effect is usually modest.
How serious is the interaction between Clozapine and Levodopa inhaled?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor the response to inhaled levodopa and motor control, and use the lowest effective clozapine dose. Reassess the need for either drug if off episodes worsen.
What other medicines interact with Clozapine?
MediHelp also lists interactions of Clozapine with, for example, Deferiprone, Irinotecan, Pimozide. The full list is on the Clozapine page.
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