Drug Addict Cure Castle

I am imagining a future in which a castle is built that allows for the cure of human drug addicts.

The drugs which have the addicts hooked are available for free in this castle.  There is a catch,
however.  The drugs are mixed with a substance that modifies the brain of the addict so that he or
she will want to quit.  These drugs come in bottles which are labeled as to their side-effects in the
fine print.  But who reads the fine print, anyway?  The added substances might be a gene therapy
that affects the pineal gland and brain in such a way that the addiction disappears.  


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