Drug interactions
Clozapine + Fludrocortisone
Severity: Minor
Clozapine and Fludrocortisone: minor 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
Fludrocortisone has mainly mineralocorticoid activity and little CYP3A4 induction at usual doses, so a meaningful change in clozapine levels is unlikely. Any interaction is theoretical and of limited clinical relevance.
What this interaction means in plain words
Clozapine and Fludrocortisone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Clozapine belongs to Central Nervous System; Fludrocortisone belongs to Endocrine.
Why it happens
Theoretical weak CYP3A4 induction; not well established for fludrocortisone.
What to do
No dose change is needed, and clinical response can be monitored routinely. Also be aware that fludrocortisone is sometimes used for clozapine-related hypotension or sialorrhea.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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
Other interactions of Fludrocortisone
Frequently asked questions
Can I take Clozapine with Fludrocortisone?
MediHelp rates the interaction as minor. Clozapine and Fludrocortisone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Fludrocortisone has mainly mineralocorticoid activity and little CYP3A4 induction at usual doses, so a meaningful change in clozapine levels is unlikely. Any interaction is theoretical and of limited clinical relevance.
How serious is the interaction between Clozapine and Fludrocortisone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is needed, and clinical response can be monitored routinely. Also be aware that fludrocortisone is sometimes used for clozapine-related hypotension or sialorrhea.
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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