I must say that for people who are addicted, who are really problematic users and who have a drug use disorder, fines are never applied. There's a long list of penalties that may be applied, such as being forbidden to attend certain places or to join certain people, or the obligation to attend, for instance, the health centre.
For instance, if I have someone who is HIV-positive and they are missing the consultations, the commission may impose that the person attend the consultations and bring a piece of paper showing that they have been there and they are complying with their treatment for HIV.