A drug delivery device with removable pods is described and related pods methods and systems. The drug delivery device comprises a plurality of receptacles, each receptacle configured to accept a corresponding drug pod, wherein each receptacle comprises: a recess configured to accept a protrusion in the corresponding drug pod, or a protrusion configured to insert in a recess in the corresponding drug pod. The corresponding drug pod comprises a shell, made of an impermeable polymer, having a first base comprising an opening configured to allow delivery of a drug, a second base, a lateral surface, a protrusion attached to, and extending away from, the lateral surface, or a recess in the lateral surface.
