Ohio Rev. Code Ann. § 5164.10
(A) The medicaid program shall cover both of the following, subject to division (C) of this section:
(B) The department of medicaid shall not impose any of the following conditions with respect to the coverage required by this section:
(4) Prior authorization requirements, step therapy protocols as defined in section 5164.7512 of the Revised Code, or any other utilization management requirements, except that prior authorization may be required for either of the following:
(D) With respect to the coverage required by this section, the department of medicaid shall do both of the following: