Abstract: A container of medicine has an open neck. A first cap detachably secured to the neck to enclose same has an outer major surface with indicia thereon. The indicia takes the form of peripherally disposed equidistantly separated numbers from one to twelve inclusing disposed in a complete circle. A second cap of like contour snap fits over the first cap and has a major surface overlying the corresponding surface of the first cap. The second cap surface has a window opening alignable with and exposing to view any selected one of said numbers. The exposed number indicates to the user the time at which the medication is to be taken.