The present invention provides certain substituted 1,4-dihydropyridine
compounds, including pure enantiomeric forms and pharmaceutical
formulations thereof. These compounds provide for elevation of
.alpha.-MyHC protein levels and .alpha.-MyHC mRNA levels, and most
frequently these same compounds provide simultaneous lowering of
.beta.-MyHC protein levels and .beta.-MyHC mRNA levels. Thus, these
compounds may be used alone or in conjunction with other drugs to treat
heart failure.