Drug interactions
Posaconazole + Triamcinolone
Severity: Major
Posaconazole and Triamcinolone: 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
Posaconazole is a strong CYP3A4 inhibitor and can raise triamcinolone exposure considerably. This can cause systemic corticosteroid effects including Cushing's syndrome and adrenal suppression, even with injected or inhaled triamcinolone.
What this interaction means in plain words
Posaconazole and Triamcinolone 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.
Posaconazole belongs to Anti Fungals; Triamcinolone belongs to Endocrine.
Why it happens
Posaconazole inhibits CYP3A4-mediated metabolism of triamcinolone, reducing its clearance.
What to do
Avoid the combination where possible, particularly for repeated or long-term triamcinolone, and consider an alternative corticosteroid less dependent on CYP3A4 such as prednisolone. If it is unavoidable, 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 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
Other interactions of Posaconazole
- Artemether + Posaconazole Contraindicated
- Avanafil + Posaconazole Contraindicated
- Cobimetinib + Posaconazole Contraindicated
- Conivaptan + Posaconazole Contraindicated
- Dihydroergotamine intranasal + Posaconazole Contraindicated
- Dihydroergotamine + Posaconazole Contraindicated
Frequently asked questions
Can I take Posaconazole with Triamcinolone?
MediHelp rates the interaction as major. Posaconazole and Triamcinolone 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. Posaconazole is a strong CYP3A4 inhibitor and can raise triamcinolone exposure considerably. This can cause systemic corticosteroid effects including Cushing's syndrome and adrenal suppression, even with injected or inhaled triamcinolone.
How serious is the interaction between Posaconazole and Triamcinolone?
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 the combination where possible, particularly for repeated or long-term triamcinolone, and consider an alternative corticosteroid less dependent on CYP3A4 such as prednisolone. If it is unavoidable, monitor for Cushingoid features and adrenal suppression.
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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