Primary dysautonomia

This trial investigates whether guanfacine or cromolyn sodium—two drugs already approved for other conditions—can improve physical functioning and reduce symptoms like fatigue, brain fog, and gastrointestinal issues in adults with postural orthostatic tachycardia syndrome (POTS).…

This study will test a new device that measures blood pressure and heart function continuously without needles. It will be used during standard autonomic function tests (like the Valsalva maneuver and tilt table) in 75 patients with orthostatic intolerance. The goal is to see if …

This small pilot study is testing whether a non-invasive device that stimulates the vagus nerve (nVNS) can help people with long-term muscle and joint pain who also have problems with automatic body functions like blood pressure, digestion, and heart rate. Twelve adults with chro…

This study tests whether a simple breathing exercise, called inspiratory muscle training, can improve the body's stress response and reduce symptoms like pain, fatigue, and sleep problems in women with fibromyalgia. Fifty-one women will be randomly assigned to real training, a sh…