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Autonomic Determinants of Postural Tachycardia Syndrome

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Autonomic Determinants of POTS - Pilot1

Postural tachycardia syndrome (POTS) is a relatively common condition affecting mostly otherwise healthy young women. It is the cause of significant disability and an impairment in quality of life. These patients have high heart rate and symptoms during standing. Many of these patients are disabled and have a poor quality of life. The sympathetic nerves are part of the nervous system that helps to maintain normal blood pressures and heart rates during activities of daily life. The purpose of this study is to determine the importance of sympathetic activation as a cause of orthostatic symptoms. The investigators will assess the effects of a blood pressure medication (Moxonidine) on the symptoms during standing. Moxonidine lowers sympathetic activity. The investigators believe patients with high resting sympathetic activity might benefit from Moxonidine. It might reduce high heart rate and improve symptoms during standing. This study should help clinicians and the growing population of patients with POTS gain a better understanding of this disorder and find more personalized treatment.

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Pharmaceutical medication involved common.study.methods.has-drugs-yes
Patients and healthy individuals accepted common.study.methods.is-healthy-no

Drug - Moxonidine

active drug given as 1 dose

Drug - Placebo

placebo pill given as 1 dose

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Autonomic Determinants of Postural Tachycardia Syndrome (Acute Pilot Study 1)

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NCT04050410

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