Mordred says that Lev is supposed to go off his medications and tell Mordred if he's not feeling well and needs to taper down more slowly.

Obviously, the thing this means is that Lev is supposed to taper down as quickly as possible and hide the tremors and headaches and sweating and light hypersensitivity from Mordred so that he isn't upset by them.

Lev manages to do this for almost two days.