A very simple, effective medication reminder used to designate the day of the week and the daily dosage number of the most recent medication dosage taken by the user (or alternatively the day of the week and the next dosage number to be taken). This invention can be used with medication containers of various sizes and shapes. It can be used over and over on the same pill bottle or it and be easily removed and placed on a new pill bottle. The device is placed on the exterior perimeter of the medication container and comprises a calendar and a marker assembly. The calendar shows the days of the week and is attached to the vertical side of the pill bottle using a weak adhesive. The marker assembly comprises an elastic band and a small tubular shaped sliding marker with the elastic band passing through an axial hole through the sliding marker. The elastic band of the marker assembly is placed over the calendar and around the pill bottle such that it can be repositioned vertically along the perimeter of the pill bottle. The elastic band holds the marker assembly in place by having a small amount of tension in the band. The sliding marker can be rotated about the band to show the daily dosage number and can slide laterally along the elastic band. The user can thus reposition the elastic band and the sliding marker to designate the calendar date and the daily dosage number of the most recent medication dosage taken.
