Oh, I like this one.
Who determines that the drug is effective in making the defendant "normal enough" to stand trial? If he can't stand trial without the drug, it is because he is insane? I bet he didn't have the drug when he commited the fraud and conspiracy, so he must have been insane then, too.
He should take the drug, say he's all better, and then use that history for a temporary insanity defense!
Oh, and aside from the leopards, the rest is not delusional.