When patients are discharged from a long-term or acute care facility to return home, many times they are sent home with medications, and unless a patient follows up with their physician, they have little interaction with the pharmacy. Many times patients start to feel better and stop taking the prescribed medications, which in turn, can cause hospital readmissions for the same ailment. Chronic illnesses such as diabetes and heart conditions require patients to be on medications the rest of their lives to control the problem. 

Maintaining adherence at home is vital to the success of keeping the illness under control. By working with a pharmacy that offers an adherence program, patients are more likely to maintain their prescriptions, take them as prescribed, and have full visibility to all of their medication regimens. Adherence programs are often referred to as medication synchronization, or med synch. All of a patient's medications are put on a standard 28- or 30-day cycle for refills, so there is only one pharmacy filling all of the scripts, and there is only one pick up or delivery to the patient's home each month. By signing up for these programs, the pharmacy can scan across all prescribed medications for potential interactions, under-medicating or over-medicating. Physicians can also get a full printed list of filled scripts from one pharmacy to have greater visibility to all meds a patient has been prescribed by multiple doctors.