A transdermal or transmucosal drug delivery device excellent in terms of
drug permeability and skin irritability and capable of reducing power
consumption, is disclosed. An output control circuit (4) of an
energization pattern controller (1) supplies a combined energization of
pulse depolarized type energization and at least one of direct current
type energization and pulse energization between an anode-side device (5)
and a cathode-side device (6) of iontophoresis. The details of
combination of energization in the output control circuit (4) is
determined based on external setting of the energization pattern
controller (1) or internal storage information.