Cortexiphan

Cortexiphan was a drug that was administered to child Psymancers to enhance their mental abilities.

History
Cortexiphan was administered to Psymancers in childhood to enhance their mental abilities, including the ability to notice when items or people originated from alternate universes through a telltale "shimmer".

In 150,084 CMT (Day 76 of The Mazkertis Paradox arc), SM Raito Nakamura knew that he would appear to "shimmer" to Cortexiphan recipients such as Psymancers because he originated from an alternate universe. Raito mocked Masahito because his own Psymancers could see the "shimmer", but Masahito could not.