A Massachusetts physician has been convicted for his involvement in an international money laundering scheme involving importing illegal and misbranded drugs. From January 2008 through January 2018, Lexington-based psychiatrist Rahim Shafa, MD, 66, was a part of a scheme where he purchased naltrexone pellet implants and disulfiram pellet implants and injections from Hong Kong, according to a Feb. 9 news release. While these drugs are approved by the FDA for alcohol and opioid dependence treatment, the pellet form of these substances are not.