Chronic pain may be an additional risk factor for drug iatrogeny due to its management and also drug non-compliance in the geriatric population.

it seems interesting to carry out an inventory of the iatrogenic risk before and after the consultation at the pain centre to enable us to identify the patients most at risk. This study would make it possible to characterize elderly patients with chronic pain, in order to consider, in a future study, setting up a pharmaceutical consultation.

Inclusion Criteria:

• The patient must be affiliated or beneficiary of a health insurance
• Patient ≥ 65 years old
• Having an outpatient consultation at the pain centre of the Nîmes University hospital of for chronic pain
• Available for pharmaceutical consultation about 30 minutes

Exclusion Criteria:

• It is impossible to give information
• The patient objects to participating in this study

patients aged at least 65 years consulting at the pain centre of the Nîmes University Hospital for chronic pain