<p>A device (10) for controlled drug delivery, the device comprising a rotatable drum(11), multiple drug reservoirs (12), a housing (13) enclosing the drum (11), rotating means (15) and a controller (16) for controlling the rotating means. The drug reservoirs (12) are arranged along a helical track at an outer surface of the rotatable drum (11). The housing (13) comprises an opening (14) for enabling release of a drug from one of the drug reservoirs 5 (12) to a surrounding tissue. The rotating means (15) are arranged for rotating the drum (11) in order to bring a drug reservoir(12) in front of the opening (14). Releasing means are provided for releasing the drug from the drug reservoir(12) in front of the opening (14).</p>
