Doctor campaigns for iPhone drug application

Steven Chang, a former Stanford resident now at UC Davis Medical Center in Sacramento, reserves a particular passion for Epocrates Rx, free software created by a San Mateo company that provides clinicians with prescription drug and formulary information such as dosage levels, contraindications, and insurer co-payment amounts. But when he tried to combine that passion with the iPhone he hit a virtual wall. In addition to preferring the iPhone, Chang was tired of juggling multiple devices as he moved around the clinic. Thus began a digital crusade by the 30-year-old primary-care physician.