The department or an entity with which the department contracts shall provide to a drug manufacturer that sells drugs for prescribed use in this state documents designed for use by the manufacturer in entering into a rebate agreement with the department or entity that is modeled on the rebate agreement specified under 42 USC 1396r-8. The department or entity may enter into a rebate agreement under this subsection that shall include all of the following as requirements:
(a)#
That, as a condition of coverage for prescription drugs of a manufacturer under s. 49.68, 49.683, or 49.685, the manufacturer shall make rebate payments for each prescription drug of the manufacturer that is prescribed for and purchased by persons who meet eligibility criteria under s. 49.68, 49.683, or 49.685, to the secretary of administration to be credited to the appropriation under s. 20.435 (4) (je), each calendar quarter or according to a schedule established by the department.
(b)#
That the amount of the rebate payment shall be determined by a method specified in 42 USC 1396r-8 (c).