 Another approach is Heroin assisted treatment, in which medical prescriptions for pharmaceutical heroin (diacetylmorphine) are provided to heroin-dependent people.Toronto's Seaton House became the first homeless shelter in Canada to operate a "wet shelter" on a "managed alcohol" principle in which clients are served a glass of wine once an hour unless staff determine that they are too inebriated to continue.Previously, homeless alcoholics opted to stay on the streets often seeking alcohol from unsafe sources such as mouthwash, rubbing alcohol or industrial products which, in turn, resulted in frequent use of emergency medical facilities.