<prompt> Exogenous adrenaline is metabolished byAchECOMTDecarboxylaseAcetyl transferase  <response>: Exogenous adrenaline is metabolised by Catechol-O-methyltransferase COMT in liver and other tissues. Metabolism does not play an impoant role in terminating the action of endogenous catecholamines. Ref: Biochemistry by U. Satyanarayana 3rd edition Pgno : 441 