Noncardiotoxic pharmaceutical compounds

A pharmaceutical composition comprising a compound having the formula

• where R1 and R2 are independently hydrogen, alkyl having from 1 to about 7 carbon atoms, aryl, aralkyl, or cycloalkyl having from 3 to about 6 carbon atoms, R20 is hydrogen, phenyl or lower alkyl, W is carbon or nitrogen, R23 and R24 are independently hydrogen, halogen, alkyl or alkoxy, and pharmaceutically acceptable salts thereof in combination with a pharmaceutically acceptable excipient, diluent or carrier suitable for delayed release oral administration.

A pharmaceutical composition comprising a compound having the formula

• where R1 and R2 are independently hydrogen, alkyl having from 1 to about 7 carbon atoms, aryl, aralkyl, or cycloalkyl having from 3 to about 6 carbon atoms, and pharmaceutically acceptable salts thereof in combination with a pharmaceutically acceptable excipient, diluent or carrier suitable for delayed release oral administration.

A pharmaceutical composition comprising a compound having the formula

• where R1 and R2 are independently hydrogen, alkyl having from 1 to about 7 carbon atoms, aryl, aralkyl, or cycloalkyl having from 3 to about 6 carbon atoms, R20 is hydrogen, phenyl or lower alkyl and pharmaceutically acceptable salts thereof in combination with a pharmaceutically acceptable excipient, diluent or carrier suitable for delayed release oral administration.

A pharmaceutical composition comprising a compound having the formula

• where R1 and R2 are independently hydrogen, alkyl having from 1 to about 7 carbon atoms, aryl, aralky, or cycloalkyl having from 3 to about 6 carbon atoms, and pharmaceutically acceptable salts thereof in combination with a pharmaceutically acceptable excipient, diluent or carrier suitable for delayed release oral administration.