The invention relates to a commissioning apparatus for pharmacies or hospitals with an an enhanced serviceability. The apparatus comprises a plurality of dosing stations (2), each dosing station having an output opening for dispensing solid drug portions, and collecting means (17) for collecting dosed quantities of solid drug portions dispensed by the dosing stations (2) and for forwarding the dosed quantities of solid drug portions to a packaging means (3), wherein a plurality of fall ducts (7) is arranged for guiding the solid drug portions from the output openings to the collecting means (17), each fall duct (7) having an outlet and a number of inlet openings, the output openings of the dosing stations (2) being aligned with the inlet openings of the fall ducts (7) when a fall duct (7) is positioned adjacent to a column (V) of dosing stations (2). Each fall duct (7) consists of at least a first part (7a) and a second part (7b), forming the fall duct when the parts are assembled, the parts (7a, 7b) being detachably connected together so that the parts can be detached for maintenance and cleaning purposes.
