(a) Before dispensing a prescription, a pharmacist shall determine, in the exercise of sound professional judgment, that the prescription is a valid prescription. A pharmacist may not dispense a prescription drug if the pharmacist knows or should know that the prescription was issued without a valid practitioner-patient relationship.
(a-1) To be a valid prescription, a prescription must be issued for a legitimate medical purpose by a practitioner acting in the usual course of the practitioner's professional practice. The responsibility for the proper prescribing and dispensing of prescription drugs is on the prescribing practitioner, but a corresponding responsibility rests with the pharmacist who fills the prescription.
(b) This section does not prohibit a pharmacist from dispensing a prescription when a valid practitioner-patient relationship is not present in an emergency.
(c) For purposes of this section and Section 562.112, a valid practitioner-patient relationship is present between a practitioner providing telemedicine medical services or teledentistry dental services and the patient receiving the services if the practitioner has complied with the requirements for establishing such a relationship in accordance with Section 111.005.