Perrigo Company plc announced that the company expects to receive a milestone payment of $250 million from RPI Finance Trust. This expected payment is the result of RPI's contingent payments for Tysabri exceeding $333 million in calendar 2018. Under Perrigo's agreement with RPI, Perrigo has the right to receive an additional $400 million milestone payment if RPI's contingent payments for Tysabri sales in 2020 exceed $351 million.