My son had his endo appt today and we are making the switch to Lantus from NPH. The endo wants the injection given in the AM. We are starting at 20units. (sounds like alot to me...is it?) my son is a few days shy of his 12th birthday, 5'4", 128 lbs. He was on between 15-24 units of NPH. I am aware of the hot shower/injection thing. Anything else? I know you can't mix Lantus with any other insulin the way NPH and Humalog could be mixed. So, do you give the Lantus injection and then figure the amount of Humalog you need for you meal and inject that? You might be thinking these are questions I should have asked the endo....I did ask some questions, but my son decided to PASS OUT after they took his blood and I got a wee bit sidetracked with my thoughts. Been a rough afternoon. all input appreciated.