I just started taking Xenadrine-EFX a few days ago and have started making entries in my journal
regarding side effects and how I generally feel. I, too, experienced the jitters the first couple of days but that has passed.
I agree with rochemist's comment about hard work...I view the Xenadrine-EFX as a tool that requires effort on my part to take advantage of; I know it's not some magic weight loss concoction.
But I've read enough about it to give it a try just for its appetite suppressant capabilities.