Board Thread:General Discussion/@comment-6192846-20130913170916/@comment-6192846-20140618121352

Adept-eX wrote: Snip I've said this previously in this thread or the Veno thread, the indication is that the blade itself wasn't poisoned (it was just a key).

The poison is supposed to be the key itself; that's why Carlos just sprinkles it in the soup. It takes jis tiama ink to nullify these effects and make it an elixer, according to the narration.

Ie, the "poison" mention in the Lunacy song is meant to refer to the Golden Key itself, not something added on top of it.