I am retired from the US Air Force and have been using insulin now for many years. I am currently using both Novolog and Lantus. However I have been thinking for a long time that the Lantus is not very effective. Recently I have taken up volunteer work at the same military hospital that I receive treatment for my diabetes. I help dispense the medications in the pharmacy. When I dispense Lantus, without mentioning any of my doubts, I ask the persons how they believe the medication is working for them. Everyone I've asked believes it is working well. You might ask why is it that I've not presented my concern with the doctor assigned to me. Because it only prompts more test and visits. My last A1c was 6.4, and my doctor is satisfied . I want to keep it that way. I've checked up on Lantus at Wikipedia. They say is assists in good control over a 24hour period with no peaks in the effect. I would think that if I were to stop injecting it, and only used the Novolog, those blood test readings would show increases. Maybe they do a little - it's hard to tell. So much depends upon what/when I eat, etc. I also use the Novolog on a sliding scale based upon blood readings . All of which tends to cloud what the Lantus maybe doing. I am wondering if anyone at this site has any information on Lantus that would relate to my situation.