The invention relates to a stop mechanism for a non-axial working End-of-Content mechanism which is geared by a hypocycloid gearing. The EoC mechanism comprises a stationary first element (10), an EoC element (30) and a rotational element (50) with a cam surface. The EoC element rotates around a center axis which is dislocated in relation to the center axis of the first element. The EoC element thus works as a hypocycloid element which rotates through a specific angle whenever a rotational element driven by a dose setting button is rotated one full revolution. The EoC element thus counts the number of set doses.