Drug interactions
Irinotecan + Tecovirimat
Severity: Minor
Irinotecan and Tecovirimat: minor 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
Tecovirimat is a weak CYP3A4 inducer and may slightly reduce irinotecan exposure. Its use is short-term, so the effect is likely limited.
What this interaction means in plain words
Irinotecan and Tecovirimat have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Irinotecan belongs to Oncology; Tecovirimat belongs to Miscellaneous.
Why it happens
Weak CYP3A4 induction increases irinotecan clearance.
What to do
No dose change is needed; monitor clinical response.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Irinotecan
- Clozapine + Irinotecan Contraindicated
- Irinotecan + Sacituzumab govitecan Contraindicated
- Adenovirus types 4 and 7 live + Irinotecan Major
- Apalutamide + Irinotecan Major
- Atazanavir + Irinotecan Major
- Carbamazepine + Irinotecan Major
Other interactions of Tecovirimat
- Bosentan + Tecovirimat Moderate
- Cyclosporin + Tecovirimat Moderate
- Darunavir + Tecovirimat Moderate
- Ethinyl estradiol-drospirenone + Tecovirimat Moderate
- Ethinyl estradiol-levonorgestrel + Tecovirimat Moderate
- Glimepiride-pioglitazone + Tecovirimat Moderate
Frequently asked questions
Can I take Irinotecan with Tecovirimat?
MediHelp rates the interaction as minor. Irinotecan and Tecovirimat have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tecovirimat is a weak CYP3A4 inducer and may slightly reduce irinotecan exposure. Its use is short-term, so the effect is likely limited.
How serious is the interaction between Irinotecan and Tecovirimat?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is needed; monitor clinical response.
What other medicines interact with Irinotecan?
MediHelp also lists interactions of Irinotecan with, for example, Clozapine, Sacituzumab govitecan, Adenovirus types 4 and 7 live. The full list is on the Irinotecan page.
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