US Food and Drug Administration (FDA) has approved a new opioid tablet Dsuvia 1,000 times more potent than morphine and 10 times stronger than fentanyl.

It will be restricted to limited use only in health care settings, such as hospitals, surgery centers, and emergency rooms, but critics worry the opioid will fuel an already grim opioid epidemic.

FDA Commissioner Scott Gottlieb says there will be a tight restriction on Dsuvia.