A physician may not prescribe, order, or administer a narcotic drug for the purpose of treating drug dependency unless the physician prescribes, orders, or administers an approved narcotic drug for the maintenance or detoxification of persons with a drug dependency as part of a program permitted by the department. see full law

(7) “Narcotic drug” has the meaning assigned by Chapter 481 (Texas Controlled Substances Act). see full law

(1) “Approved narcotic drug” means a drug approved by the United States Food and Drug Administration for maintenance or detoxification of a person physiologically addicted to the opiate class of drugs. see full law

(a) A physician may delegate to an advanced practice registered nurse or physician assistant, acting under adequate physician supervision, the act of prescribing or ordering a drug or device as authorized through a prescriptive authority agreement between the physician and the advanced practice registered nurse or physician assistant, as applicable. see full law

(b) Except as provided by Subsection (b-1), a physician may delegate the prescribing or ordering of a controlled substance only if:(1) the prescription is for a controlled substance listed in Schedule III, IV, or V as established by the commissioner of the Department of State Health Services under Chapter 481, Health and Safety Code;(2) the prescription, including a refill of the prescription, is for a period not to exceed 90 days;(3) with regard to the refill of a prescription, the refill is authorized after consultation with the delegating physician and the consultation is noted in the patient’s chart; and(4) with regard to a prescription for a child less than two years of age, the prescription is made after consultation with the delegating physician and the consultation is noted in the patient’s chart.(b-1) A physician may delegate the prescribing or ordering of a controlled substance listed in Schedule II as established by the commissioner of the Department of State Health Services under Chapter 481, Health and Safety Code, only:(1) in a hospital facility-based practice under Section 157.054, in accordance with policies approved by the hospital’s medical staff or a committee of the hospital’s medical staff as provided by the hospital bylaws to ensure patient safety, and as part of the care provided to a patient who:(A) has been admitted to the hospital for an intended length of stay of 24 hours or greater; or(B) is receiving services in the emergency department of the hospital; or(2) as part of the plan of care for the treatment of a person who has executed a written certification of a terminal illness, has elected to receive hospice care, and is receiving hospice treatment from a qualified hospice provider. see full law

(a) In this section, “advanced practice registered nurse” means a registered nurse licensed by the board to practice as an advanced practice registered nurse on the basis of completion of an advanced educational program. The term includes a nurse practitioner, nurse midwife, nurse anesthetist, and clinical nurse specialist. The term is synonymous with “advanced nurse practitioner” and “advanced practice nurse.” see full law

(14) “Prescriptive authority agreement” means an agreement entered into by a physician and an advanced practice registered nurse or physician assistant through which the physician delegates to the advanced practice registered nurse or physician assistant the act of prescribing or ordering a drug or device. see full law