When should I stop taking amphetamines to avoid impact on my Vibrant Hormones test?

If choosing to discontinue a medication before testing, a good rule of thumb is to take the biological half-life of the drug times 5 to allow for clearance before testing. For example, if the half-life is 14 hours, a conservative approach is to wait 3 days. However, it is important to realize that there is a great deal of variability in the production, circulation levels, and metabolic clearance rates of medications. Consult with your healthcare provider before stopping any medications or supplements.