Sec. 4. (a) For a partial fill of an opioid prescription, a pharmacist shall dispense, upon request of the:
(1) patient;
(2) personal or legal representative of the patient; or
(3) guardian of the patient;
the lesser amount requested.
(b) If a prescription for an opioid is partially filled under subsection (a), the pharmacist shall do the following:
(1) Comply with the partial refill requirements set forth in 21 U.S.C. 829.
(2) Document that an individual described in subsection (a) for whom the partial prescription was filled (or the individual's personal or legal representative or guardian) requested the partially filled prescription.