My doctor said the same thing and i saw a different doctor who didn't hesitate to give it to me because i am so overweight. I know you can get it online but i don't know if i would trust those sites. Yes it worked very well for me along with a healthy diet and walking 1-2 miles a day i lost about 60 pounds in 6 months. It subsides your appetite so much that you have to force yourself to eat but it gives you more energy than you can handle almost so it was no problem to go for walks. I would get a second opinion and if they still say no then maybe try an online pharmacy. Good luck.