This result signifies that the patient has two copies of a normal function allele. Based on the genotype result this patient is predicted to be a TPMT normal metabolizer. There is no reason to selectively adjust the dose of most medications that are metabolized by TPMT. However, thiopurines can be affected by a patient's TPMT and NUDT15 phenotype. Please consult a clinical pharmacist for more information about how TPMT and NUDT15 metabolic status influences drug selection and dosing.