People who are prescribed self-administered medications frequently take less than half the doses. Poor adherence to medication regimens is associated with worsening of disease, death and increased health care costs in the United States. The few studies conducted in the emergency department (ED) setting suggest that between 7 to 45 percent of patients do not fill their prescription; one study conducted in Canada reported that 45% of ED patients did not follow their prescribed regimen. One strategy that may improve medication adherence among ED patients is a better information exchange between the patient, provider and the health care system. This study will use a randomized controlled trial to test the effect that two alternative ways of delivering information prescriptions (IRxs) have on medication adherence and treatment outcomes of ED patients.