Pharmacogenetics of Bupropion Metabolism

The aim of the investigators research is to see if variants in a particular gene (named CYP2B6) affect how the body metabolizes (breaks down) certain medications, including the drug bupropion. Bupropion is widely used in the treatment of depression and for helping people quit smoking. Genes are portions of DNA that code for particular proteins in the body. The investigators are studying the gene that codes for a protein called CYP2B6. Differences in the structure of the gene are called variants and may mean that a person metabolizes a drug faster or slower than a person with a different variant.