An apparatus and method for the self-administration of a plurality of doses of
an intranasal liquid pharmaceutical composition, including opioid analgesics, that
includes a drug delivery device containing a plurality of sealed vials, each vial
containing a predetermined volume of the pharmaceutical composition, a pump assembly
for conveying the liquid pharmaceutical composition from the interior of the vial
and discharging it as a nasal spray in response to manual activation by the patient,
and programmable means for sequentially advancing a vial to the ready position
after passage of a prescribed time interval following the last activation of the
delivery device.