A delivery system including a body construction (7) and at least one capsule (8) containing a pharmaceutical composition, the capsule having at least a first end and a second end. The body construction (7, 12, 34) has at least two locking parts (9, 10), each locking part (9, 10) having at least a first end and a second end, the first end of each locking part (9, 10) having a surface adapted to face and cover one of the at least first and second ends of the capsule (8). The diameter of at least one of the locking parts varies along its length between the first end and the second end, and the capsule (8) is mounted between the at least two locking parts. Also disclosed is a manufacturing process of a delivery system, the system including a body construction and at least one capsule containing a pharmaceutical composition.