{HEAD ~ The present invention} is directed to pharmaceutical compositions that include a therapeutically effective amount of {TAIL ~ at least one electron active compound}, or a pharmaceutically acceptable derivative thereof, that has at least two polyvalent cations, at least one of which has a first valence state and at least one of which has a second, different valence state 
{ HEAD ~ The present invention } is directed to pharmaceutical compositions that include a therapeutically effective amount of { TAIL ~ at least one electron active compound } , or a pharmaceutically acceptable derivative thereof , that has at least two polyvalent cations , at least one of which has a first valence state and at least one of which has a second , different valence state
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