All tests › Medicine levels

Vedolizumab level

Medicine levels · also printed as Vedolizumab, Vedolizumab trough, Entyvio level, VDZ level

Typical UK adult range3 to 7 mg/L

Bands of roughly 3 to 7 mg/L are printed for maintenance; the treating team's target applies.

What this test measures

Vedolizumab is an antibody medicine given for Crohn's disease and colitis. Levels are measured in some centres.

Why doctors request it

Measured when the condition flares despite treatment, to tell too little medicine from antibodies against it.

What commonly pushes it up

A higher or more frequent dose schedule
Low inflammation

What commonly pushes it down

Antibodies against the medicine
Heavy inflammation and low albumin, which use it up faster
Missed doses

Everyday reasons for a value outside the range

Target bands differ by condition and by whether the aim is healing or maintenance

About the sample

Just before the next dose.

Written by a UK consultant physician. Typical UK adult reference ranges; your laboratory's own printed range takes precedence.

Got a report with Vedolizumab level on it?

Upload a photo or PDF and see every line against the range your lab printed, explained in plain English. First report free.

Read my report free

This is an educational summary of results you uploaded. It is not medical advice, a diagnosis or a treatment plan, and it does not replace the doctor who requested the test. If you are worried, or a result is marked outside range, discuss it with your doctor. Written and reviewed by a UK consultant physician. Reference ranges vary between laboratories.