Environmental awareness leads medical field to question its responsibility and possibilities for action.

Drug residues can have a major environmental impact as per their bioaccumulation, toxicity and persistence characteristics, depending on where they are discarded. In France, drug residues should be disposed of by incineration, but in practice, this is not systematic. Moreover, data on drug wastage in Intensive Care Units (ICU) are rare.

GAME-OVER observational study aims to evaluate drug wastage in ICU in France and to suggest ways to improve health care practices.

Observational study with data collection during a 24-hour business day. Data collected refer to healthcare team's practices and patients.

Collection starts when day shift starts (at 7:00 am) and ends when night shift leaves (at 7:00 am the following day).

Inclusion Criteria:

• Adult patients hospitalized in intensive care units during the 24 hours of data collection.

Exclusion Criteria:

• Patient's opposition to participate in the study or patient family opposition if the patient is not able to be informed.

Adult patients hospitalized in intensive care units during the 24 hours of data collection.