 Supervised injection sites are legally sanctioned, medically supervised facilities designed to address public nuisance associated with drug use and provide a hygienic and stress-free environment for drug consumers.The facilities provide sterile injection equipment, information about drugs and basic health care, treatment referrals, and access to medical staff.Opioid replacement therapy (ORT), or opioid substitution therapy (OST), is the medical procedure of replacing an illegal opioid, such as heroin, with a longer acting but less euphoric opioid; methadone or buprenorphine are typically used and the drug is taken under medical supervision.