means 36 center a given chamber 82 over the receiving tray 34 and permit the cartridge 10 to rotate in only one direction with respect to the receptacle base 30 a convex lens 46 is used to magnify the sequential time related indicia 12 shown in fig1 though they may rotate with respect to each other the cartridge 10 and receptacle base 30 may be connected by means of a flange 88 and resilient interlocking means 90 finally turning to fig3 an annular cover plate 60 has an aperture 62 through which protrudes hollow post 16 external arcuate surfaces 18 can be used both to rotate the cartridge relative to the receptacle base and to mate with the internal polygonal surfaces of another cartridge the flat side 66 of the annular cover plate 60 permits mounting on a vertical surface the cover plate is partially cut away to show the annularly disposed chambers 82 in the cartridge 30 fig4 illustrates two capsule dispensers of the present invention in an interlocked relation for simultaneous rotational operation the external polygonal surfaces 18 of the upper portion 22 of hollow post 16 of the lower cartridge 10 is operably engaged within the internal polygonal surfaces 80 of an upper cartridge 10 39 for simultaneous rotational operation therewith it can therefore be seen that similarly situated chambers 82 and 82 39 in cartridges 10 and 10 39 will simultaneously discharge their contents into their respective receiving trays.