Paroxetine and Risperidone: Drug Interaction Guide

Quick answer: This combination requires caution. Paroxetine and Risperidone can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Paroxetine interacts with Risperidone

Paroxetine inhibits CYP2D6, blocking risperidone conversion and clearance, raising plasma levels of the active moiety and increasing extrapyramidal symptom risk.

What you should do

Consider risperidone dose reduction of 25-50% and monitor for sedation, akathisia, and parkinsonism.

Key facts

Severity

Moderate — caution required

Mechanism

Paroxetine inhibits CYP2D6, blocking risperidone conversion and clearance, raising plasma levels of the active moiety an...

Action

Consider risperidone dose reduction of 25-50% and monitor for sedation, akathisia, and parkinsonism.

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Paroxetine and Risperidone together?

With caution. Consider risperidone dose reduction of 25-50% and monitor for sedation, akathisia, and parkinsonism.

What is the severity of this interaction?

The interaction between Paroxetine and Risperidone is classified as Moderate — caution required. Paroxetine inhibits CYP2D6, blocking risperidone conversion and clearance, raising plasma levels of the active moiety and increasing extrapyramidal symptom risk.

What should I do if I'm prescribed both?

Consider risperidone dose reduction of 25-50% and monitor for sedation, akathisia, and parkinsonism. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.