"just started victoza for weight loss and to lower my a1c and for weight loss. just upped my dose today to 1.6. so far, so good.  first day: diarrhea and a slight headache with a little nausea. i haven&#039;t noticed any difference yet in this higher dose as compared to the smallest dose. still have diarrhea and a little nausea. surprisingly, i have much more energy than usual. love that and the fact that on my 5th day i have already lost 6 pounds! i have no complaints as of now. i hope it stays this way and the weight loss continues. will post as i get further into it."