Overview Effect of Medical Treatment and Prognosis of Postural Orthostatic Tachycardia Syndrome (POTS) Status: Completed Trial end date: 2016-12-01 Target enrollment: Participant gender: Summary The purpose of the study is to investigate effect of medical treatment and prognosis of Postural Orthostatic Tachycardia Syndrome (POTS) Phase: Phase 4 Details Lead Sponsor: Seoul National University HospitalTreatments: BisoprololPropranololPyridostigmine Bromide