Other suitable nitric oxide/nucleophile complexes include those having the following formulas: ##STR2## wherein J is an organic or inorganic moiety, including, for example, a moiety which is not linked to the nitrogen of the N2 O2 - group through a carbon atom, M+x is a pharmaceutically acceptable cation, where x is the valence of the cation, a is 1 or 2, and b and c are the smallest integers that