At the occasion of the international day against drugs on 26 June, the STADD “Societé Tunisienne d’Addictologie” is organising with MedNET support an advocacy workshop ‘The Agonist Treatment: A Key Element in Drug Risk Reduction Policy’. Other NGOs as ATL/MST, SIDA and others international organisations such as ONUSIDA and UNODC are associated to this event which will take place in Tunis.