Abstract: A medicinal recording device is provided which is placed directly upon a patient's medication container. The device consists of at least one strip having a plurality of indicia on raised or recessed detents. The indicia correspond to days and dosages. The patient slides a tab attached to the strip along the strip to the marked button corresponding to the day the medication is taken and/or the number of the dose taken. The tab engages the strip adjacent the selected indicia to releasably lock the tab in position and to prevent unintended sliding of the tab.