A device for dispensing a liquid is connectable to a container containing the liquid and detachably connectable to a base station having a drive member, the device including a liquid duct and a pump actuated by the drive member for effecting passage of liquid through the duct, characterized in that the device includes a cutter for piercing a tamper resistant foil positioned across the outlet of the container and that a push pin for actuating the cutter is operable from outside the device.