How much did you take? It took me a bit for Oxy to start working on me. Nothing happened first time for me either. So, I decided to take 2 with each meal (or really, I took 2 with 2 of my 3 daily meals and none with the 3rd meal) like they say is an alternative way, and then I take 3 at night, so I get about 7 in a day. It also says yuo have t experiment to find your correct dose as it is different for different people.