The internal-use pharmacy of the central armed forces pharmacy supplies the armed forces hospitals and the other elements of the armed forces health service mentioned in article L. 6147-7 as well as the national gendarmerie with gases for medical use and the preparations mentioned in 1° and 2° of article L. 5126-5 and 5° of article L. 5126-6, in order to meet the specific needs of defence in the absence of an available or suitable medical device or pharmaceutical speciality.