PURPOSE: To provide a metering pump that can be used repeatedly, can easily empty a paste container, and can be handled simply and reliably.

CONSTITUTION: A suction side end of a bellows 3 is constructed integrally with a housing 2 coupled thereto. The housing 2 is provided with an enveloping body 40, which is open on an end face, for accommodating a filled paste container 41 with a follower plunger 44 in an enveloping manner, and with an axially projecting opener plunger 58 on a suction side of a suction valve 4. In addition, the paste container 4 has, at a front wall 51, a collar 52, which projects against the suction valve 4 on the end face, sealingly surrounds a suction pipe socket 29, and has a disk- or pot-shaped cutoff closure, which is connected to the collar 52 in one piece via a thin, annular cutoff web and can be separated from the collar 52 by the opener plunger 58.