Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Interventional
Official Title: Comparison of Effect of Propranolol, Bisoprolol, Pyridosgitmine in Postural Orthostatic Tachycardia Syndrome (POTS) and Prognosis After Medical Treatment
Brief Summary: The purpose of the study is to investigate effect of medical treatment and prognosis of Postural Orthostatic Tachycardia Syndrome (POTS)