A description is given of an intermediate product ( 1 ) for producing a plurality of pre-filled dual-chamber syringes or cartridges, comprising: 5 - a support template (2) comprising an array of support seats； - a plurality of partially pre-filled tubular containment bodies (3), each inserted in a respective support seat, each of the tubular containment bodies (3) 10 extending between a first (4) and a second opening (5)； - a sterile package (20-23) inside which the support template (2) and the plurality of tubular containment bodies (3) are enclosed in sterile manner； in which the tubular containment bodies (3) comprise 15 in the interior thereof: - a first (6) and a second stopper (7) arranged in such a manner as to define therebetween a first containment chamber (8) in the tubular containment body (3) and adapted to slide inside the tubular containment 20 body； - a liquid substance contained inside the first filling chamber (8).
