1. Short title This Act may be cited as the Prescription Transparency Act of 2018 . 2. Prohibited gag provisions Part B of title III of the Public Health Service Act ( 42 U.S.C. 243 et seq.) is amended by adding at the end the following: 320B. Prohibited gag provisions (a) In general No contract that is between— (1) a health insurer or any entity that provides pharmacy benefits management services on behalf of a health insurer (commonly referred to as a pharmacy benefit manager )