The ternary complexes of Cd(II) with promethazine and glutamic acid ha
ve been studied polarographically . The stability constants of the for
med complexes have been calculated using the suitable methods. The res
ults reveal the formation of two ternary complexes, Cd(Glu)(Pro), and
Cd(Clu) 2(Pro) with stability constants of 7.4 and 9.22 (log K), respe
ctively.