Diaboline

Diaboline is one of two medications designed by Trevisani Klaus, the other being Diabolovir, after extensively studying the effects of. This is a drug that works as an agonist of the organisms within a particular Devil Fruit of interest that causes the mutation; allowing the medication to take root in the genetic code of the subject temporarily. In doing so, the patient is capable of attaining the unique powers and characteristics associated with the Devil Fruit reflected in the agonist, though the effects only last for as long as the drug remains in the system. The current model of the drug in the form it is produced is shown to have a half-life of roughly two hours. The medication originally presented with disastrous side effects after initial use but Klaus found it was possible to alter the drug's chemistry in such a way that it would work as both the Devil Fruit agonist while also acting as an analogue of Diabolovir, making it so the drug not only bestows the effects of the Devil Fruit of interest but also eradicates all traces of the drug within the body once the effects wear off.

Analogues of the drug without this dual-agonist feature are also in production, named Diabonyl, enabling a patient that undergoes the sufficient duration of treatment with this drug under the close eye of Klaus himself to acquire a permanent mutation in their genetic code. In essence, it would be as though they had themselves eaten the original devil fruit, though with some discrepancies.