...another one chipping in to say check with your doc!
i tried a low dose for something else, and pdoc did warn me about weight loss (which has been a huge problem for me in the past) and said we would have to come off it if i lost too much. but i didnt lose anything, just stayed completely stable.
your doc will know if there are other options which may be more viable before trying these guys. i didnt like them much myself, and gave it up after a while.