Glipizide
"After having a severe reaction to Metformin, the doctor put me on Glipizide. While I don't faint on this medication, the side effects have been horrible for me. My sugar does seem to be better after being high for so long, it's finally below 160 most of the time. However, I am severely dizzy and foggy-headed constantly, to the point I stopped driving. Also have bad lower back ache, nausea, stomach upset any time I eat, blurry vision (I have perfect vision so this bothers me), and I've noticed some changes in my emotional response to things as well, such as anger and a bit of depression - which I've never had. The effects have been bad enough that I've had to take off work several days in a row as well as miss school."