Abstract: The present invention provides a cartridge for the preparation of a liquid pharmaceutical or nutraceutical formulation, the cartridge being adapted for insertion into a mixing vessel and for dispensing at least three flowable pharmaceutical or nutraceutical compositions into said mixing vessel, the cartridge comprising a container portion, a cover portion and an opening means, or more specifically an opening means of the container portion, for opening the cartridge, preferably after its insertion into the mixing vessel, wherein the container portion comprises a container wall and a container base, the container wall and the container base defining an inner lumen and an opening of the container portion, the opening being positioned opposite to the container base, and a segmenting structure located in the inner lumen of the container portion and being physically connected to the container wall and/or to the container base such as to divide the inner lumen of the container portion into at least three segments co