I take Levothyroxin every morning and I start Lantus at bedtime tonight, will it affect the Lantus? I also take two other sugar medicines. My A1C is 10, three months ago it was 6. I've been a diabetic for about twelve years and mostly controled by my diet. If during the night my sugar drops will glucose tablets bring it back up quickly? Do I give the shot in the stomach only or can I give it in the leg? Why do you have to throw away the unused portion after twenty-eight days? I had to get five pens, why can't you just get one at a time, since I may not have to keep using it?