An estimated average of 50% of patients with chronic diseases in developed countries do not take medicines as prescribed, possibly limiting the effectiveness of those medicines. In the U.S., this may result in an estimated $100-300 billion in avoidable healthcare costs due to direct costs such as unnecessary escalation of treatment as well as indirect costs.[1],[2] For example, patients suffering from chronic mental disorders such as schizophrenia are often required to take medication for long periods, and it is not unusual for these patients to discontinue taking their medication, or not take their medication as prescribed, which can lead to disease relapse and recurrence.