Drug interactions
Fludrocortisone + Pentobarbital
Severity: Moderate
Fludrocortisone and Pentobarbital: 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
Barbiturates induce CYP3A4 and can accelerate the metabolism of corticosteroids, reducing fludrocortisone effect. In patients with adrenal insufficiency this may lead to inadequate replacement.
What this interaction means in plain words
Fludrocortisone and Pentobarbital 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
Barbiturate induction of hepatic CYP3A4 increasing fludrocortisone clearance.
What to do
Monitor blood pressure, serum sodium and potassium, and symptoms of adrenal insufficiency; increase the fludrocortisone dose if the response is inadequate.
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 Fludrocortisone
Frequently asked questions
Can I take Fludrocortisone with Pentobarbital?
MediHelp rates the interaction as moderate. Fludrocortisone and Pentobarbital 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. Barbiturates induce CYP3A4 and can accelerate the metabolism of corticosteroids, reducing fludrocortisone effect. In patients with adrenal insufficiency this may lead to inadequate replacement.
How serious is the interaction between Fludrocortisone and Pentobarbital?
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 blood pressure, serum sodium and potassium, and symptoms of adrenal insufficiency; increase the fludrocortisone dose if the response is inadequate.
What other medicines interact with Fludrocortisone?
MediHelp also lists interactions of Fludrocortisone with, for example, Mifepristone, Aldesleukin, Amphotericin b. The full list is on the Fludrocortisone page.
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