Drug reference

natalizumab

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.

Drug class

Gastrointestinal Tract (Monoclonal antibody(GIT))

Mechanism of action

Recombinant humanized monoclonal antibody that binds to the α4-subunit of α4β1 and α4β7 integrins, prevents leukocyte-endothelial adhesion and leukocyte extravasation.

Common side effects

  • Fatigue
  • Sinusitis
  • Urinary urgency/frequency
  • Vaginal infections
  • Diarrhea

Contraindications

  • Hypersensitivity Active/history of progressive multifocal leukoencephalopathy

Related conditions

Frequently asked questions

What drug class is natalizumab?

natalizumab belongs to: Gastrointestinal Tract.

How does natalizumab work?

Recombinant humanized monoclonal antibody that binds to the α4-subunit of α4β1 and α4β7 integrins, prevents leukocyte-endothelial adhesion and leukocyte extravasation.

What are the common side effects of natalizumab?

Fatigue, Sinusitis, Urinary urgency/frequency, Vaginal infections, Diarrhea

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug reference