Medicament delivery apparatus

An electronic capsule comprising:

• a discrete drive element having a housing, control electronics for operating the electronic capsule, a pump for dosing and displacing a substance, a first locking mechanism and a second locking mechanism;
• a discrete power element having a housing, a power source for powering the electronic capsule and operatively associated with the control electronics and the pump, and a locking mechanism;
• and
• a discrete payload element having a housing, a reservoir for storing a substance, one or more openings in the housing for releasing a substance from the reservoir and a locking mechanism for engaging the drive element locking mechanism,
• wherein engagement of the power element locking mechanism with the drive element first locking mechanism secures the power source housing element to the drive element, and engagement of the drive element second locking mechanism with the payload element locking mechanism secures the drive element to the payload element, said engagement making the electronic capsule operable and specific.