FDA cracks down on sales of Puff and Hyde e-cigs

Go deeper: The FDA has authorized 23 tobacco-flavored e-cigarette products and devices for legal sale in the U.S.

• Products without marketing authorization orders are prohibited under the Food, Drug, and Cosmetic Act. The FDA generally sends warning letters for first-time violations, and can use injunction, seizure and fines if corrective action isn't taken.

What they're saying: "Retailers and distributors play a key role in keeping unauthorized tobacco products off the shelves, and if they fail to do so, we're committed to taking appropriate action," said Brian King, director of the FDA's Center for Tobacco Products.

Background: The FDA reorganized its Center for Tobacco Products in February after an external review found it struggled to function as a regulator and was operating primarily in reactive mode.