A record of current and past medications is useful if not vital information to an individual. Such information needs to be easily accessible, yet adequately protected. MyMedList (MML) is an application developed at the National Library of Medicine. MML allows users to manage their medication list, and control access to it. The personal medication list can be printed out to share, can be mailed to a relative, can serve as a reminder to the individual for taking medications, or be shown as reference information in doctor’s offices or hospitals. The MyMedList app is based on standards; MML follows the HL7 standard for CDA/CCD and uses RxNorm data for prescription medication.