(a) In accordance with §111.006 of the Texas Occupations Code, a valid prescription requires:(1) establishing a physician-patient relationship; and(2) compliance with all other applicable laws before prescribing, dispensing, delivering, or administering a dangerous drug or controlled substance, including, but not limited to, the Medical Practice Act and Texas Health and Safety Code, Chapters 481 and 483.(b) Requirements for Prescribing for Chronic Pain via Telemedicine. A physician must use audio and video two-way communication, unless the patient:(1) is an established pain patient of the prescribing physician;(2) receives a prescription identical to the prescription issued at the previous visit; and(3) was seen by the prescribing physician, or their delegate, in the last 90 days either;(A) in-person; or(B) by audio and video two-way communication.