An intermediate product (1) for producing a plurality of pre-filled dual-chamber syringes or cartridges includes a support template (2) having an array of support seats and partially pre-filled tubular containment bodies (3), each inserted in a respective support seat. Each of the tubular containment bodies (3) 10 extends between a first (4) and a second opening (5). A sterile package (20-23) encloses the support template (2) and the tubular containment bodies (3) in sterile manner. The interiors of the tubular containment bodies (3) include a first stopper (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 is contained inside the first containment chamber (8).
