a digital pillbox , a personal alert device , and a computer - implemented system and method for aiding a patient in maintaining a desirable dosage schedule of medicines . sensors and logic determine a time and quantity of a dosage taken , if any , and the system keeps records and monitors against a schedule and against a dynamic , learning , behavioral model of the patient . the schedule is remotely updateable by e . g . the patient &# 39 ; s pharmacist . the system is equipped to alert e . g . a friend of the patient , or emergency services , if the patient fails to take the desired medications or if the patient &# 39 ; s dosage behavior exhibits a significant change .