Dr. Dallas Humble, in a deal with federal prosecutors, pleaded to conspiring to smuggle and sell hormones and a count of aiding and abetting in their illegal distribution.
His attorney said Humble faces up to five years in prison and $250,000 fine on each count.
The plea agreement came on the fourth day of testimony in Humble’s trial.
Humble was one of three people affiliated with the Northeast Louisiana Anti-Aging and Wellness Center involved in the incident.
Dr. Linda Bunch, who practiced at the center, and Paul Temple, owner of Temple Systems Inc., also were indicted and reached plea bargain agreements.
As part of the plea agreement, Humble must forfeit his property in West Monroe, where the clinic was located.
Humble and Bunch are also required to forfeit about $585,000 they earned from HGH sales to the federal government.
The Food, Drug and Cosmetic Act prohibits the knowing distribution of, or possession with intent to distribute, HGH for any use in humans other than the treatment of a disease or other recognized medical condition.
The hormone also has been known to arrest the effects of aging, and the government alleges the co-defendants conspired to obtain HGH to use as an anti-aging treatment.