An apparatus includes an elongate member having a proximal end portion and a distal end portion. The proximal end portion is configured to receive an electrical current from a current source. The elongate member is configured to transmit the electrical current from the proximal end portion to the distal end portion. At least a portion of the elongate member is configured to be disposed within a body of a patient. An electrode is coupled to the distal end portion of the elongate member. The electrode is configured to transmit a portion of the electrical current from the distal end portion of the elongate member to a target bodily tissue. A coating is disposed on at least a portion of the elongate member. The coating is formulated to release at least one of a therapeutic agent, a conductive agent, and/or an insulative agent into the body of the patient in response to the electrical current being transmitted from the proximal end portion to the distal end portion of the elongate member.