The material in the Prescription Drugs area draws on the expertise of Brent G. Petty, M.D., Associate Professor, Division of Clinical Pharmacology and General Internal Medicine at Johns Hopkins University School of Medicine, and other leading researchers at Johns Hopkins, this Prescription Drugs topic area will report on a wide-range of important subjects, including: aging and the risks of multiple drug use; the promise of pharmacogenomics; medication-related weight gain and what you can do about it; ordering drugs from Canada safely, and more.