Inderal is, I believe, the brand name for propranolol which is a betablocker.This is prescibed for many complaints including essential tremor.My husband was originally prescibed it when the G.P thought he had essential tremor .When he saw a neurologist specialising in movement disorders he was told he had P.D and to take Requip and the propranolol.This he continues to do.Despite the propranolol his tremor can, on occassions ,be quite pronounced.Not when he see the local neurologist though !!!Is this like the tooth ache stopping when you see the dentist?