Described is a medicament container carrier (1) adapted to hold a first medicament container (2) having a first predetermined size and capable of containing more than a first volume of a medicament. The container carrier (1) comprises a body, and an adapter (4) coupled to the body. The adapter (4) is adapted to hold a second medicament container (3) having a second predetermined size different from the first predetermined size and capable of containing no more than the first volume of the medicament.
