Transnasal delivery of medication directly to a patient's brain is achieved using an iontophoresis wire cooperable with a medication administration device. A controller regulates an electric charge to the iontophoresis wire. The iontophoresis wire is insertable into each nasal cavity. This wire is preferably encased in a tube, through which the medication will be transnasally delivered. A cleaning solution may also be delivered to the nasal cavity after treatment to reduce irritation from the iontophoresis.