. "\"Any process that stops, prevents, or reduces the frequency, rate or extent of the regulated release of a catecholamine.\" [GOC:mah]" . . "negative regulation of catecholamine secretion" . "down regulation of catecholamine secretion" . "down-regulation of catecholamine secretion" . "downregulation of catecholamine secretion" . . . . . "inhibition of catecholamine secretion" .