A medication adherence system and corresponding medication box for improving medication adherence. The system includes the medication box, which is transparent and has a machine-readable marker, such as a QR code, on or beneath the floor thereof. The marker is capable of being scanned and read through the transparent bottoms of individual chambers. Data embedded in the marker includes, but is not limited to, the user's medication plan, the date and time when the medication is to be ingested, and instructions for recording the date and time when the marker is scanned and read. The underlying software program/application processes this information and provides an indication as to the user's compliance with the medication plan.