gammaCore is the first non-invasive, hand-held medical device applied at the neck that acutely treats the pain associated with episodic cluster headache in adult patients through the transmission of a mild electrical stimulation to the vagus nerve through the skin. Designed as a portable, easy-to-use technology, gammaCore can be self-administered by patients, as needed, without the potential side effects associated with standard of care.

Reference: gammaCore®, https://www.electrocore.com/news/gammacore-the-first-non-invasive-vagus-nerve-stimulator-applied-at-the-neck-now-available-for-adult-patients-in-the-u-s/, july 2nd,2019