Weight loss pills?

okay I want to loos weight for my sisters wedding. I have always been the big one of the girls I weight 180 and I'm 5'4 I'm exercising but it does not seem to work on its own I'm cutting back on fatty foods too and I been looking at weight loss pills to help me out I have looked at the risks but still not sure I would like to know if has any one have tried and it has worked for them
Updates
+1 y
also I'm on birth control and my friends tell me that's why I got big because I use to be 130

Weight loss pills?
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