Apparatus for administering a dose of a fluid product including: - a housing having a distal end and a proximal end or portion, wherein provided on the housing is a dispensing abutment of a dose to be administered, - a prestressed spring which is at least partially accommodated by a drive member and the drive member is mounted in the housing moveably axially in the distal direction in order to move a plug (7a, 7b) accommodated in a carpule, in particular in a multi-chamber carpule, for administering the dose of the fluid product, in the distal direction, wherein the spring is supported at the distal end at a drive member and at the proximal end at a holding element, - a dispensing abutment provided on the drive member, wherein the dispensing abutment of the drive member can be brought into abutting contact with the dispensing abutment of the housing for administering the dose of the fluid product, and the dispensing abutment of the drive member is arranged displaced axially in the proximal direction relative to the engagement element of the drive member at the drive member, characterised in that - the holding element is provided for holding the drive member acted upon with a force of the spring, wherein in a starting condition of the apparatus the drive member can be held in a proximal position by an engagement between an engagement element provided on the holding element and an engagement element provided on the drive member, wherein in the triggered condition of the apparatus the engagement element of the holding element is out of engagement with the engagement element of the drive member, wherein - at least in the starting condition of the apparatus the proximal end of the drive member is in abutting contact with the housing and provided on the housing is a projection to limit a relative movement of the holding element with respect to the housing in the distal direction, - wherein in the starting condition of the apparatus the holding element is spaced in the proximal direction from the proximal end or portion of the housing (1b, 1k). - a housing having a distal end and a proximal end or portion, wherein provided on the housing is a dispensing abutment of a dose to be administered, - a prestressed spring which is at least partially accommodated by a drive member and the drive member is mounted in the housing moveably axially in the distal direction in order to move a plug (7a, 7b) accommodated in a carpule, in particular in a multi-chamber carpule, for administering the dose of the fluid product, in the distal direction, wherein the spring is supported at the distal end at a drive member and at the proximal end at a holding element, - a dispensing abutment provided on the drive member, wherein the dispensing abutment of the drive member can be brought into abutting contact with the dispensing abutment of the housing for administering the dose of the fluid product, and the dispensing abutment of the drive member is arranged displaced axially in the proximal direction relative to the engagement element of the drive member at the drive member, characterised in that - the holding element is provided for holding the drive member acted upon with a force of the spring, wherein in a starting condition of the apparatus the drive member can be held in a proximal position by an engagement between an engagement element provided on the holding element and an engagement element provided on the drive member, wherein in the triggered condition of the apparatus the engagement element of the holding element is out of engagement with the engagement element of the drive member, wherein - at least in the starting condition of the apparatus the proximal end of the drive member is in abutting contact with the housing and provided on the housing is a projection to limit a relative movement of the holding element with respect to the housing in the distal direction, - wherein in the starting condition of the apparatus the holding element is spaced in the proximal direction from the proximal end or portion of the housing (1b, 1k).