(a) The board shall adopt rules to provide a dispensing directive to instruct pharmacists on the manner in which to dispense a drug or biological product according to the contents of a prescription. The rules adopted under this section must:
(1) require the use of the phrase “brand necessary” or “brand medically necessary” on a prescription form to prohibit the substitution of a generically equivalent drug or interchangeable biological product for a brand name drug or biological product;
(2) be in a format that protects confidentiality as required by the Health Insurance Portability and Accountability Act of 1996 (Pub. L. No. 104-191) and its subsequent amendments;
(3) comply with federal and state law, including rules, with regard to formatting and security requirements;
(4) be developed to coordinate with 42 C.F.R. § 447.512; and
(5) include an exemption for electronic prescriptions as provided by Subsection (b).
(b) The board shall provide an exemption from the directive adopted under this section for prescriptions transmitted electronically. The board may regulate the use of electronic prescriptions in the manner provided by federal law, including rules.