Drugs with Chiral Centers and
                        Enantiomers
                        =============================

þ Prozac
 - fluoxetine exists as R- and S- versions, with R- and S- metabolites taht
   have different effects.

þ Quinine and Quinidine
 - they are enantiomers of each other

þ INH, isoniazid
 - has the enantiomer iproniazid that is an antidepressant as well as working
   against TB (isoniazid has no antidepressent effect)

þ Epinephrine
 - available as "racemic epi":  mixture of both l- and d- enantiomers.  Usual
   kind of epi is just one enantiomer.  Why use racemic?  Dunno.  ###