A transfer device for use in transferring a substance from a storage container into an ampoule that can be inserted into a device for dosed administration of substance, the transfer device including an adapter for securing the storage container and the ampoule relative to each other and coupling them to be able to transfer a substance contained in the storage container into the ampoule, and a displacement element that can act on the storage container such that the substance contained in the storage container is forced out of the storage container and transferred into the ampoule via the coupling formed by the adapter.