Vedolizumab — Uses, Dosage, Side Effects & Safety

Drug class: Monoclonal antibody; Integrin receptor antagonist; Immunosuppressant

Overview

Vedolizumab is a prescription medicine used to treat adults with moderate to severe ulcerative colitis and Crohn’s disease, which are types of inflammatory bowel disease (IBD). It helps reduce inflammation in the gut, leading to fewer symptoms such as diarrhea, abdominal pain, and rectal bleeding. Vedolizumab works by targeting a specific protein (α4β7 integrin) on certain white blood cells. This action prevents these cells from moving into the gut tissue, where they would otherwise cause inflammation. Because it acts mainly in the gut, vedolizumab has a lower risk of affecting the rest of the immune system compared to some other immunosuppressants. Key points for patients: Vedolizumab is given as an infusion or injection by a healthcare professional. It may take several weeks to notice improvement. Regular monitoring is needed to check for side effects and ensure the medication is working effectively.

Therapeutic uses

  • Crohn's disease
  • Ulcerative colitis

Common side effects

  • Headache
  • Nausea
  • Arthralgia
  • Nasopharyngitis
  • Upper respiratory tract infection
  • Infusion-related reactions
  • Progressive multifocal leukoencephalopathy (PML)

Frequently Asked Questions about Vedolizumab

What conditions does vedolizumab treat?

Vedolizumab is used to treat moderate to severe ulcerative colitis and Crohn’s disease in adults who have not responded well to other treatments.

How long does it take for vedolizumab to work?

Some patients may notice improvement within 2–6 weeks, but it can take up to 14 weeks for full effect. Your doctor will monitor your progress.

Can vedolizumab be used in children?

Vedolizumab is not approved for use in children under 18 years. Its safety and effectiveness in pediatric patients have not been established.

Is vedolizumab safe during pregnancy or breastfeeding?

The safety of vedolizumab in pregnancy and breastfeeding is not well established. Discuss risks and benefits with your healthcare provider.

What should I do if I develop an infection while on vedolizumab?

Contact your healthcare provider immediately if you develop signs of infection such as fever, chills, or persistent cough. Vedolizumab may need to be paused or stopped.

Can I receive vaccines while taking vedolizumab?

You should not receive live vaccines while on vedolizumab. Inactivated vaccines may be given, but consult your doctor first.

How is vedolizumab different from other biologics?

Vedolizumab specifically targets the gut, reducing systemic immune suppression and potentially lowering the risk of widespread infections compared to some other biologics.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.