"overall this is a pretty good pill. the only side effect i have had is hyperactivity. weird... i know. i feel like i can pick up a building. it&#039;s given me restless legs but now i love to exercise! especially jogging. i&#039;ve lost almost 15lbs in the first 2 months, which makes me happy because i was about 35lbs over weight. i take it at night, so of course i can&#039;t sleep until it hits around 4-5am. but i do wake up feeling as if i went to bed at 9pm. i love it! m y boyfriend has noticed my increased sex drive but he&#039;s okay with it. definitely a better alternative to coffee and soda. i never crash either, which has made me a lot happier. but i wish i could sit down without having to constantly shake my legs."