My doctor wouldn't let me have them either. He said they were "a hoax, that it is just a way for weight loss clinics to make more money." I have to disagree with him because I know that Debethied and Momto8 have lost a lot of weight after getting these shots. However, he is totally content to give me Phen as long as I keep losing weight, but he laughed at the B-12 shots!