Drug interactions
Fludrocortisone + Quetiapine
Severity: Minor
Fludrocortisone and Quetiapine: 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 little CYP3A4-inducing activity at usual replacement doses, so any reduction in quetiapine levels is unlikely to be clinically important. A more relevant concern is fludrocortisone-induced hypokalemia, which could add to QT risk with quetiapine.
What this interaction means in plain words
Fludrocortisone and Quetiapine 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 belongs to Endocrine; Quetiapine belongs to Central Nervous System.
Why it happens
Possible weak CYP3A4 induction by corticosteroids; hypokalemia from mineralocorticoid effects may add to QT prolongation.
What to do
No dose change is routinely needed; monitor serum potassium and clinical response to quetiapine. Correct hypokalemia, particularly in patients with other QT risk factors.
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 Quetiapine
- Adagrasib + Quetiapine Major
- Amiodarone + Quetiapine Major
- Amisulpride + Quetiapine Major
- Amoxapine + Quetiapine Major
- Anagrelide + Quetiapine Major
- Apalutamide + Quetiapine Major
Other interactions of Fludrocortisone
Frequently asked questions
Can I take Fludrocortisone with Quetiapine?
MediHelp rates the interaction as minor. Fludrocortisone and Quetiapine 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 little CYP3A4-inducing activity at usual replacement doses, so any reduction in quetiapine levels is unlikely to be clinically important. A more relevant concern is fludrocortisone-induced hypokalemia, which could add to QT risk with quetiapine.
How serious is the interaction between Fludrocortisone and Quetiapine?
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 routinely needed; monitor serum potassium and clinical response to quetiapine. Correct hypokalemia, particularly in patients with other QT risk factors.
What other medicines interact with Quetiapine?
MediHelp also lists interactions of Quetiapine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Quetiapine page.
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