{TAIL ~ The present invention} is directed to pharmaceutical compositions that include {HEAD ~ a therapeutically effective amount} of 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 
{ TAIL ~ The present invention } is directed to pharmaceutical compositions that include { HEAD ~ a therapeutically effective amount } of 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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