We had a pt recently that was receiving 135 units of Lantus qHS. Is there a maximum amount of Lantus that anyone knows of? The pt was obese (@ 300lb), was still running high BGs (200's) and stated that his DM II is always out of control. Any thoughts, ideas, etc.? This person just got my brain to running and in spite of all the info on here I haven't come across a max dose for Lantus.