(a) Each client has the right to not receive unnecessary or excessive medication.
(b) Medication may not be used:
(1) as punishment;
(2) for the convenience of the staff;
(3) as a substitute for a habilitation program; or
(4) in quantities that interfere with the client's habilitation program.
(c) Medication for each client may be authorized only by prescription of a physician and a physician shall closely supervise its use.
(d) Each client has the right to refuse psychoactive medication, as provided by Subchapter F.