I am Becki, my furbaby is Rags. He is 13 years old and was diagnosed diabetic March 2013. He has been on Lantus. His last dose was 3 units B.I.D. He has been on many other units and just cannot regulate him. He is a different furbaby. He does not react the way diabetic cats reacts. Everything is the opposite with him. He was 13 lbs. when he was diagnosed, he is now 17 lbs. and is having trouble passing his bowels. Which he has been to the Vet four times for. Her answer is, Miralax and Mineral Oil in his food. Nothing helps. January I broke his Lantus bottle which I had just bought. My Doctor gave me a bottle of Levemir. I asked Vet if he could take it. She said 2 units B.I.D. and check his blood. I have checked his blood first couple if days and in P.M. He goes low at night. Tonite 65. He ate 1/2 can of F.F. I also gave him some treats and held his insulin. My question, do you think he may only need one injection a day ? He used to eat three cans of F.F. now only one or one and a half.