Roque Carranza-Alvarado, 28, formerly of Dallas, Texas, pleaded guilty in March to three counts of possession with intent to distribute controlled substances.
While some criticize using a drug to wean users off, Hamilton Treatment Services executive director Ivy Voynovich said it is crucial to helping patients think clearly.
Special Agent Orville Greene said the strategy to counteract counterfeit pills, fentanyl and other narcotics trafficking requires them to raise more awareness.