The products made by USPlabs of Dallas, called Jack3d and OxyElite Pro, had a retail value of more than $8 million, the agency said.
The action reflects an escalating federal crackdown on workout boosters and fat-burning products that contain an amphetaminelike stimulant called dimethylamylamine, or DMAA for short.
In April, the F.D.A. issued a public advisory saying that the stimulant was an illegal dietary ingredient and could pose serious health risks to consumers. Health regulators said the stimulant could elevate blood pressure, potentially leading to heart attacks, and warned consumers not to take it.
Soon after, USPlabs said that it would, for business reasons, stop producing DMAA products and market formulations without the stimulant. But the company continued to distribute its remaining inventory of the original Jack3d and OxyElite Pro, the F.D.A. said, which prompted the agency to issue an administrative detainment order for the products and ask the company to destroy them.
“We don’t want consumers using the products. We think they present a risk to public health,” said Daniel Fabricant, the director of the F.D.A.’s Division of Dietary Supplement Programs. “We will leave no stone unturned to get them out of the marketplace.”
USPlabs destroyed the DMAA products at a company warehouse in Dallas on July 2, the agency said. USPlabs did not immediately return an e-mail and a call seeking comment.
Last month, federal prosecutors asked judges in two states to authorize the seizure of more than 3,200 cases of DMAA products from GNC warehouses in Pittsburgh and Anderson, S.C.
Greg Miller, a spokesman for GNC, said that the company believed DMAA to be a “safe, legal dietary ingredient.” He added, “to our knowledge, and for inexplicable reasons, the only retailer selling these products that was targeted by the F.D.A. was GNC.”