Drug interactions
Nelfinavir + Upadacitinib
Severity: Moderate
Nelfinavir and Upadacitinib: 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
Nelfinavir inhibits CYP3A4 and may raise upadacitinib exposure, increasing infection and cytopenia risk.
What this interaction means in plain words
Nelfinavir and Upadacitinib 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.
Nelfinavir belongs to Anti Virals; Upadacitinib belongs to Musculoskeletal.
Why it happens
Nelfinavir inhibits CYP3A4, reducing upadacitinib metabolism.
What to do
Use a reduced upadacitinib dose per labeling. Monitor for infection and cytopenias.
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 Upadacitinib
- Abrocitinib + Upadacitinib Contraindicated
- Adenovirus types 4 and 7 live + Upadacitinib Contraindicated
- Baricitinib + Upadacitinib Contraindicated
- Bcg vaccine live + Upadacitinib Contraindicated
- Cyclosporine + Upadacitinib Contraindicated
- Dengue vaccine + Upadacitinib Contraindicated
Other interactions of Nelfinavir
- Alfuzosin + Nelfinavir Contraindicated
- Avanafil + Nelfinavir Contraindicated
- Dronedarone + Nelfinavir Contraindicated
- Eletriptan + Nelfinavir Contraindicated
- Ergotamine + Nelfinavir Contraindicated
- Flibanserin + Nelfinavir Contraindicated
Frequently asked questions
Can I take Nelfinavir with Upadacitinib?
MediHelp rates the interaction as moderate. Nelfinavir and Upadacitinib 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. Nelfinavir inhibits CYP3A4 and may raise upadacitinib exposure, increasing infection and cytopenia risk.
How serious is the interaction between Nelfinavir and Upadacitinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use a reduced upadacitinib dose per labeling. Monitor for infection and cytopenias.
What other medicines interact with Upadacitinib?
MediHelp also lists interactions of Upadacitinib with, for example, Abrocitinib, Adenovirus types 4 and 7 live, Baricitinib. The full list is on the Upadacitinib page.
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