A dispenser for delivering liquid to pasty masses has a pump unit, which has a restoring spring (25), and a discharge part (15) which forms a discharge tube (16), wherein the discharge tube (16) has a dispensing opening (17) which opens laterally to a dispenser longitudinal axis (A) extending in the pump direction, wherein furthermore a closure part (18) can be moved between a closed position and an open position in the discharge tube (16) in order to close the dispensing opening (17). An additional opening (20) is formed further up in the discharge part (15), which opening opens in the direction of the longitudinal axis (A) and is closed by a latching part (21).