This result signifies that the patient has two copies of a decreased function allele. Based on the genotype result, this patient is predicted to have poor ABCG2 function. This patient may be at a high risk for an adverse response to medications that are affected by ABCG2 (i.e. statins). To avoid an untoward drug response, dose adjustments or alternative therapeutic agents may be necessary for medications affected by ABCG2. Please consult a clinical pharmacist for more specific information about how ABCG2 function influences drug dosing.