An apparatus for delivering a therapeutic agent may be associated with a cap for a bottle that contains a prescription for a drug to which the therapeutic agent corresponds. When the prescription bottle contains an opioid, the therapeutic agent may comprise a substance that counteracts the effects of the opioid. The apparatus may include a nozzle that facilitates nasal administration of the therapeutic agent. The apparatus may be capable of attaching to a cap for a prescription bottle, or the apparatus may have a configuration that enables it to serve as the cap for the prescription bottle.
