Influence on the Cardiovascular System: The use of noradrenaline with volatile halogenated anesthetic agents, monoamine oxidase inhibitors, tricyclic antidepressants, linezolid, adrenergic-serotoninergic drugs, or any other cardiac sensitizing agents is not recommended because severe, prolonged hypertension and possible arrhythmias may result.
Guanethidine: The effects of noradrenaline may be enhanced by guanethidine.