Drug interactions
Pentobarbital + Triamcinolone
Severity: Moderate
Pentobarbital and Triamcinolone: 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
Pentobarbital induces hepatic CYP3A4 and can lower triamcinolone exposure. The corticosteroid may therefore be less effective than expected.
What this interaction means in plain words
Pentobarbital and Triamcinolone 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 CYP3A4 increases triamcinolone metabolism.
What to do
Monitor for reduced anti-inflammatory or therapeutic response to triamcinolone and increase the dose if needed. Reassess the dose when the barbiturate is stopped.
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 Triamcinolone
- Smallpox vaccine live + Triamcinolone Contraindicated
- Triamcinolone + Zoster vaccine live Contraindicated
- Adenovirus types 4 and 7 live + Triamcinolone Major
- Aldesleukin + Triamcinolone Major
- Atazanavir + Triamcinolone Major
- Axicabtagene ciloleucel + Triamcinolone Major
Frequently asked questions
Can I take Pentobarbital with Triamcinolone?
MediHelp rates the interaction as moderate. Pentobarbital and Triamcinolone 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. Pentobarbital induces hepatic CYP3A4 and can lower triamcinolone exposure. The corticosteroid may therefore be less effective than expected.
How serious is the interaction between Pentobarbital and Triamcinolone?
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 reduced anti-inflammatory or therapeutic response to triamcinolone and increase the dose if needed. Reassess the dose when the barbiturate is stopped.
What other medicines interact with Triamcinolone?
MediHelp also lists interactions of Triamcinolone with, for example, Smallpox vaccine live, Zoster vaccine live, Adenovirus types 4 and 7 live. The full list is on the Triamcinolone page.
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