Abstract: A tablet inserter comprises a body portion (12), a plunger (16, 66) which is longitudinally displaceable in the body portion, a dispensing channel (24) which is accessed via a slot (22) for receiving tablets and which is traversed by the plunger, and a cannula (26) at the forward end of the dispensing channel. Forwardly of the access slot (22) there is provided a fluid restrictor comprising an annular collar (42) housed within a cap (40) and held in place by a plug (38). The collar (42) is of resilient plastics material with the aperture therethrough being a sealing fit with the push rod (66).