Health and Fitness Study: Marijuana Use Associated With Decreased Symptoms Of Opiate Withdrawal In Methadone Maintenance Treatment Subjects by Gary Kopycinski on July 16, 2013 Gary Kopycinski Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 Washington, DCâ(ENEWSPF)âJuly 16, 2013.