# Safety & Interactions

Itraconazole has a well-documented conventional medical safety history, but cancer use still needs proper review because it is a real drug with real pharmacology.

### General tolerability

Common side effects can include:

* nausea
* diarrhoea
* abdominal pain
* rash
* headache

More serious but less common concerns include:

* liver toxicity
* heart-failure risk in susceptible patients

### Practical cautions

* active liver disease deserves caution
* drug interaction review is essential
* cardiac history matters, especially where heart-failure risk is relevant
* combination use in active oncology care should always be supervised

### Clinical positioning

Itraconazole is not a casual supplement-style adjunct. It is a repurposed drug, which means it deserves the same respect as any other active medication in a cancer plan.

### Key References

Repurposing itraconazole for the treatment of cancer\
<https://pmc.ncbi.nlm.nih.gov/articles/PMC6769799/>

Itraconazole — Wikipedia\
<https://en.wikipedia.org/wiki/Itraconazole>

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This information is for education only. It is not medical advice, diagnosis, or treatment. Please speak with a qualified clinician before making changes to care, medication, or supplement use.
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