Maryland Man Who Conspired with Doctor to Illegally Distribute Promethazine-Codeine and other Controlled Substances Sentenced to 42 Months in Prison

ABINGDON, Va. – The first defendant sentenced for conspiring with Dr. Rotimi Iluyomade, an Annandale-based doctor convicted of distributing more than 7,000 oxycodone pills, 34,000 milliliters of hydrocodone-chlorpheniramine solution (also known as “Tussionex”), and 107,000 milliliters of promethazine-codeine solution (also known as “lean”), will serve 42 months in federal prison and forfeit $100,000 to the government.

Zion Oluwademilade Adeduwon, 24, of Bowie, Md., was sentenced yesterday in U.S. District Court in Roanoke. Adeduwon pled guilty in April 2025 to conspiracy to distribute and possess with the intent to distribute oxycodone and hydrocodone-chlorpheniramine solution, and to obtain possession of promethazine-codeine by fraud. He is the first of the co-conspirators charged with drug distribution to be sentenced.

Also charged in the conspiracy and awaiting trial or sentencing are: Obioma Alozie Ndubuka; Raymono Alfonzo Russel II; Cameron Isaiah Lewis; Elhadj Malick Diallo; Kenechukwu Brian Okwara; and Yared Michael Tesfaye.

According to court documents, in at least 2023 and 2024, Iluyomade and the co-conspirators entered into an agreement to distribute oxycodone pills and hydrocodone-chlorpheniramine solution to pharmacies in multiple states, including California, Colorado, Nebraska, Arizona, Missouri, Florida, Pennsylvania, Maryland, New Jersey, Delaware, Rhode Island, Georgia, Wisconsin, Texas, West Virginia, and in the Eastern and Western Districts of Virginia. At least 70 of the illegal controlled substance prescriptions were transmitted to and/or filled at pharmacies in the Western District of Virginia.

As part of the conspiracy, multiple individuals visited Iluyomade’s medical clinic to obtain fraudulent prescriptions. The individuals provided Iluyomade with lists of multiple “patients” with fake identifying information or different variations of names and false addresses, and requested prescriptions be sent to pharmacies throughout the United States for the “patients” on the lists.

Adeduwon frequented Iluyomade’s clinic in Annandale on a regular basis to obtain fraudulent prescriptions for oxycodone, Tussionex, and lean. He paid approximately $300 per fraudulent prescription. Adeduwon requested the prescriptions be written in fake patient names and addresses and directed Iluyomade to send the prescriptions to pharmacies in Connecticut, Pennsylvania, Maryland, and Virginia.

The Drug Enforcement Administration, Federal Bureau of Investigation, Virginia State Police, Russell County Sheriff’s Office, Salisbury, Maryland Police Department, Loudoun County Sheriff’s Office, Nebraska State Police, HHS-OIG, and the Food and Drug Administration (FDA) are investigating the case.

Assistant U.S. Attorney Lena Busscher is prosecuting the case.

Acting United States Attorney Robert N. Tracci, Christopher C. Goumenis, Special Agent in Charge DEA Washington Division, and Darren B. Cox, Assistant Director in Charge of the FBI Washington Field Office made the announcement.