I have been on lantus since about 2003, and in 2007 I was diagnosed with breast cancer. I ve just been reading how
lantus may cause cancer . im afraid the
lantus may have caused this. did anyone else have anything like this happen? as well im type1 diabetic and my bloodsugers are really up and down all the time and i take a split dose of lantus. my suger will drop and stay down all day or for hours!