This is Dr. David
wow, you are asking this information from doctors online.
most doctors would not recommend using such synephrine and caffeine to loose weight.
this taxes your heart and your kidneys
if you drank 2-4 cups of coffee in the morning, you would have sustained energy up to noon.
the good part of coffee is that you have fluids going in your body
when you take these capsules, if you don't drink enough water, you can damage your kidneys.
you really should only take 2 of the Performix a day, but it sounds like you are looking to take more, like one or two more in the afternoon.
make sure you drink at least a gallon of water a day to help flush your kidneys and help eliminate out creatinine and toxins out of your system.
let me know if you have other questions.