Drug interactions
Ganaxolone + Risperidone
Severity: Moderate
Ganaxolone and Risperidone: 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
Ganaxolone is a neuroactive steroid with sedative effects, and combining it with risperidone can cause additive drowsiness and impaired alertness. Falls and reduced psychomotor performance are more likely in older or debilitated patients.
What this interaction means in plain words
Ganaxolone and Risperidone 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.
Ganaxolone belongs to Central Nervous System; Risperidone belongs to Central Nervous System.
Why it happens
Additive CNS depression through GABA-A modulation and antagonism of histamine and adrenergic receptors.
What to do
Monitor for excessive sedation and reduce the dose of one agent if it occurs; counsel patients about driving and fall risk.
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 Risperidone
- Ibutilide + Risperidone Contraindicated
- Risperidone + Vandetanib Contraindicated
- Adagrasib + Risperidone Major
- Amiodarone + Risperidone Major
- Amisulpride + Risperidone Major
- Amoxapine + Risperidone Major
Other interactions of Ganaxolone
Frequently asked questions
Can I take Ganaxolone with Risperidone?
MediHelp rates the interaction as moderate. Ganaxolone and Risperidone 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. Ganaxolone is a neuroactive steroid with sedative effects, and combining it with risperidone can cause additive drowsiness and impaired alertness. Falls and reduced psychomotor performance are more likely in older or debilitated patients.
How serious is the interaction between Ganaxolone and Risperidone?
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 for excessive sedation and reduce the dose of one agent if it occurs; counsel patients about driving and fall risk.
What other medicines interact with Risperidone?
MediHelp also lists interactions of Risperidone with, for example, Ibutilide, Vandetanib, Adagrasib. The full list is on the Risperidone page.
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