Propranolol (Inderal®) is a non-selective beta blocker (i.e. it blocks the action of adrenalin on both β1- and β2-adrenoreceptors). It has various uses, such as treatment of high blood pressure, prophylaxis of migraine, controlling tremors, suppressing the symptoms of hyperthyroidism (tachycardia, tremor), lowering portal pressure in portal hypertension when this has led to esophageal varices, as well as in the management of anxiety and panic disorders.