Trimspa? Xenadrine?

Anyone have any thoughts or opinions on either of these? Is it safe to do cardio when taking them?
thanks.

Not worth the money, or the drain they put on me. I get better results without stimulants. Yes, as long as your not taking too much.

I like running, swimming, and eating less. By using stimulants to lose weight you will never learn how to live with a proper diet and exercise lifestyle. Just learn and keep healthy habits, your heart and liver will thank you.