Pharmacology Propranolol is useful in the treatment of all of the following EXCEPT: A Angina B Partial atrioventricular block C Idiopathic hypertrophic subaortic cardiomyopathy D Familial tremor 💡 Explanation Propranolol is useful in the treatment of all of the following EXCEPT: ✓ Correct Answer: B. Partial atrioventricular block