Disclosed is a series of somatostatin-dopamine chimeric analogs which retain both somatostatin and dopamine activity in vivo. An example is: 6-n-propyl-8.beta.-ergolinglmethylthioacetyl-D-Phe-c(Cys-Tyr-D-Trp-Lys-Ab- u-Cys)-Thr-NH.sub.2