The Food and Drug Administration could pull e-cigarettes off the market, commissioner Scott Gottlieb said Friday, if new restrictions on the sale of "fruity" flavors don't slow a surge in teenage vaping, CNBC reports.

The backdrop: The FDA rolled out new regulations on Thursday restricting flavored e-cigarette sales, with the exception of mint and menthol, as usage among teens increased by 75% from over the last year. Gottlieb called the uptick in use of flavored e-cigarettes among teens "astonishing."