A cannula for dispensing fluid products for vaginal and anal applications comprising an inner tubular body for containing a fluid product, which is provided, at a first end, with an outlet for dispensing the product and, at a second end that lies opposite the first end, with a grip, at least one rectilinear longitudinal slot that is formed on the lateral surface of the inner tubular body, an outer tubular body, which is open at its two opposite ends and is fitted substantially coaxially over the inner tubular body and is associated therewith a rotary coupling, a helical guide formed on the inner lateral surface of the outer tubular body, a plunger, which is accommodated in the inner tubular body, with which it is associated so that it can slide axially, and is provided with at least one pin, which is inserted so that it can slide within the rectilinear longitudinal slot and is provided with an end that extends beyond the rectilinear longitudinal slot and couples to the helical guide, and removable elements for closing the outlet, the relative rotation of the inner tubular body and of the outer tubular body being adapted to move the plunger so that it slides along the inner tubular body in order to expel the product from the outlet.
