Drug interactions
Itraconazole + Triamcinolone acetonide injectable
Severity: Major
Itraconazole and Triamcinolone acetonide injectable: major 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
Itraconazole can increase systemic exposure to triamcinolone, including after injection, leading to iatrogenic Cushing syndrome and adrenal suppression. Cases have been reported with intra-articular and epidural use.
What this interaction means in plain words
Itraconazole and Triamcinolone acetonide injectable can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Inhibition of CYP3A4 metabolism of triamcinolone by itraconazole.
What to do
Avoid if possible, or use an alternative corticosteroid less dependent on CYP3A4 such as methylprednisolone with caution. If combined, monitor for Cushingoid features and adrenal suppression.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Itraconazole
- Alfuzosin + Itraconazole Contraindicated
- Alprazolam + Itraconazole Contraindicated
- Avanafil + Itraconazole Contraindicated
- Conivaptan + Itraconazole Contraindicated
- Dihydroergotamine intranasal + Itraconazole Contraindicated
- Dihydroergotamine + Itraconazole Contraindicated
Frequently asked questions
Can I take Itraconazole with Triamcinolone acetonide injectable?
MediHelp rates the interaction as major. Itraconazole and Triamcinolone acetonide injectable can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Itraconazole can increase systemic exposure to triamcinolone, including after injection, leading to iatrogenic Cushing syndrome and adrenal suppression. Cases have been reported with intra-articular and epidural use.
How serious is the interaction between Itraconazole and Triamcinolone acetonide injectable?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible, or use an alternative corticosteroid less dependent on CYP3A4 such as methylprednisolone with caution. If combined, monitor for Cushingoid features and adrenal suppression.
What other medicines interact with Itraconazole?
MediHelp also lists interactions of Itraconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Itraconazole page.
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