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Tacrolimus

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Also known as: FK506; TAC
[Often referred to by brand name (see MedlinePlus Drug Information)]
Formal name: Tacrolimus

At a Glance

Why Get Tested?

To determine the level of the drug tacrolimus in your blood in order to establish a dosing regimen, maintain therapeutic levels, and detect toxic levels

When to Get Tested?

As soon as tacrolimus therapy begins, frequently at first, then at regular intervals to monitor concentrations over time

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

The sample should be collected 12 hours after your last dose and immediately prior to your next dose or as directed by your health practitioner.