I was taking it for over 6 weeks and I can say it had a really bad effect on me. I could sleep all day during that time, didn't give sh.. about anything. My hands were shaking and had very high pressure. It didn't help me at all, people around me (family and friends) said that I act strange when I was taking it. I stopped taking them after that time. It didn't help me at all, it was worse then without them because I felt like I am on drugs then, very sleepy and alienated. I wouldn't recommend that to anyone..........