The choice of opioid-assisted treatments for patients with heroin dependence is particularly diverse in Switzerland. Since 1994, diacetylmorphine assisted treatments are available. The rules for prescribing and dispensing diacetylmorphine, as laid down by the FOPH, are particularly strict, requiring patients to attend the treatment center several times a day. Thanks to a legislative amendment by the Federal Council, it became possible to extend the dispensing of diacetylmorphine during the Covid-19 epidemic, allowing patients to take the treatment with them for longer periods and thus reducing the number of visits to the clinic. The time freed up could then be invested in other activities, allowing therapies to be refocused more on the patients' life project.