The IATROPREV project is an organizational innovation experimentation project, carried out in Hauts-de-France by the University hospitals of Amiens and Lille, the ARS and the URPS Doctors and Pharmacists of Hauts-de-France and following to the social security financing law of 2018, allowing experimentation with new organizations in the health sector, according to article 51. The objectives of this course are to improve the relevance of prescription in elderly people with multiple drugs as well as, the coordination of care between the city and the hospital through the sharing of information and the establishment of multi-professional consultations between the various care actors.

Inclusion Criteria:

• patient hospitalized in the geriatric medicine department
• Potential involvement of a drug in hospitalization or potential or proven iatrogenic event during hospitalization;
• Numerous therapeutic modifications (3 or more);
• Drug interaction or introction of a new drug with one or more drug interactions;
• Medicinal product with a narrow therapeutic marge drug requiring close monitoring.

Exclusion Criteria:

• patient non hospitalized in the geriatric medicine department

patient hospitalized in the geriatric medicine department with olymedicated drugs