(a) In this section, "drug formulary" means a list of drugs preferred for use and eligible for coverage under a health benefit plan.
(b) A health benefit plan provided under this chapter that uses a drug formulary in providing a prescription drug benefit must require prior authorization for coverage of the following categories of prescribed drugs if the specific drug prescribed is not included in the formulary:
(1) a gastrointestinal drug;
(2) a cholesterol-lowering drug;
(3) an anti-inflammatory drug;
(4) an antihistamine drug; and
(5) an antidepressant drug.
(c) Repealed by Acts 2009, 81st Leg., R.S., Ch. 1308, Sec. 41(8), eff. September 1, 2009.