(R) -Propranolol hydrochloride

(R) -Propranolol (hydrochloride) (Dexpropranolol hydrochloride) is a nonselective antagonist of beta-adrenergic receptor (β-adrenergic receptor (βAR) ) that competitively blocks the action of epinephrine (EPI) and norepinephrine (NE) on β1- and β2-adrenoreceptors (AR) . It exhibits anti-neuroblastoma activity and is effective in combination therapies for relapsed and refractory neuroblastoma patients.