Shivversplint
From Warhammer 40k - Lexicanum
Shivversplint is a drug popular with the warbands of the Emperor's Children.[1]
When injected into drilled channels in the bones of a Space Marine, this soup of Xenos marrow and psychoplasm binds with the users skeleton. Their bones then alter, creating a gruesome froth that sluices through their flesh and eventually bleeds from their pores. It collects in a dense jellied gruel with their armour, creating lumpen flesh but allowing for a greater union with their battle plate.[1]