Tonix Pharmaceuticals surges after FDA nod for non-opioid pain drug

Drugmaker Tonix Pharmaceuticals' TNXP.O shares surge 19.5% to $60.83 in extended trading

U.S. Food and Drug Administration approves co's drug, Tonmya, to manage pain related to type of chronic condition called fibromyalgia

Fibromyalgia causes widespread pain, fatigue as well as problems with sleep and memory

Approval paves the way for the drug to be first new treatment option in over 15 years for patients

The pill is designed for bedtime treatment to improve sleep quality and reduce pain associated with the chronic condition

Stock up 55.7% YTD