Mo. Rev. Stat. § 338.255
338.255 Specific prescription or nonprescription drugs or devices, no requirement ...
338.255. Specific prescription or nonprescription drugs or devices, no requirement to carry. — Notwithstanding any other provision of law, no pharmacy licensed in this state shall be required to carry or maintain in inventory any specific prescription or nonprescription drug or device.
(L. 2013 S.B. 126)