Drug interactions
Natalizumab + Vedolizumab
Severity: Contraindicated
Natalizumab and Vedolizumab: contraindicated 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
Both drugs block integrin-mediated lymphocyte trafficking, natalizumab broadly including the CNS and vedolizumab selectively in the gut. Combined use may raise the risk of PML and other infections.
What this interaction means in plain words
Natalizumab and Vedolizumab are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Natalizumab belongs to Gastrointestinal Tract; Vedolizumab belongs to Gastrointestinal Tract.
Why it happens
Overlapping integrin antagonism causing additive impairment of lymphocyte trafficking.
What to do
Do not use together. If switching, stop one agent before starting the other and monitor for infection and neurological symptoms.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Natalizumab
Other interactions of Vedolizumab
Frequently asked questions
Can I take Natalizumab with Vedolizumab?
MediHelp rates the interaction as contraindicated. Natalizumab and Vedolizumab are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Both drugs block integrin-mediated lymphocyte trafficking, natalizumab broadly including the CNS and vedolizumab selectively in the gut. Combined use may raise the risk of PML and other infections.
How serious is the interaction between Natalizumab and Vedolizumab?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use together. If switching, stop one agent before starting the other and monitor for infection and neurological symptoms.
What other medicines interact with Natalizumab?
MediHelp also lists interactions of Natalizumab with, for example, Axicabtagene ciloleucel, Baricitinib, Belatacept. The full list is on the Natalizumab page.
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