Dispensing head for a tube for dispensing medium from the tube, having: - a flat outer housing with, on the rear side oriented towards the tube, a receiving well for insertion and securing of an outlet connector of the tube and, on an opposite end side, an outlet opening for dispensing the medium, - an internal space surrounded by walls of the outer housing, wherein an annular wall section of the outer housing separates the receiving well from an annular region, of the internal space of the outer housing, which surrounds the outside of the annular wall section, - an outlet valve (54d, 44b), provided in the internal space, with a valve body and a valve seat and with a pressure chamber which is designed such that, when the medium contained therein is pressurized, the valve body and the valve seat can be moved apart from one another from a closed position into an open position in order to permit the medium to leave the pressure chamber through the dispensing opening, and - a medium path (60, 62, 64, 66, 68) within the housing via which an inlet opening at the receiving well is connected to the pressure chamber, characterized in that - the pressure chamber extends between an internal side of an end-side wall of the outer housing and a counter-face (54b, 54c), arranged essentially parallel thereto in the internal space of the outer housing and - the medium path (60, 62, 64, 66, 68) extends outward from the inlet opening, relative to the direction of insertion of the outlet connector into the receiving well, and thence discharges into the pressure chamber such that the medium coming from the inlet opening can flow into the pressure chamber only in an outer rim region. - a flat outer housing with, on the rear side oriented towards the tube, a receiving well for insertion and securing of an outlet connector of the tube and, on an opposite end side, an outlet opening for dispensing the medium, - an internal space surrounded by walls of the outer housing, wherein an annular wall section of the outer housing separates the receiving well from an annular region, of the internal space of the outer housing, which surrounds the outside of the annular wall section, - an outlet valve (54d, 44b), provided in the internal space, with a valve body and a valve seat and with a pressure chamber which is designed such that, when the medium contained therein is pressurized, the valve body and the valve seat can be moved apart from one another from a closed position into an open position in order to permit the medium to leave the pressure chamber through the dispensing opening, and - a medium path (60, 62, 64, 66, 68) within the housing via which an inlet opening at the receiving well is connected to the pressure chamber, - the pressure chamber extends between an internal side of an end-side wall of the outer housing and a counter-face (54b, 54c), arranged essentially parallel thereto in the internal space of the outer housing and - the medium path (60, 62, 64, 66, 68) extends outward from the inlet opening, relative to the direction of insertion of the outlet connector into the receiving well, and thence discharges into the pressure chamber such that the medium coming from the inlet opening can flow into the pressure chamber only in an outer rim region.