Not compatible. Invanz (ertapenem) is not compatible with dextrose containing solutions.
Invanz (ertapenem) It probably reacts with dextrose, therefore recommended with normal saline.
Causes instability. Ertapenem (invanz) molecule becomes "unstable" in sugar solutions (mannitol, dextrose, etc.). Therefore, all the drug labels specifically point out to not infuse with dextrose.