These vitamins contain caffeine
These did not work for me...I started to notice increased heart rate, and after going on a trip and forgetting to take these vitamins with me, I realized these vitamins were the cause of the problem.  The increased heart rate  made me very uncomfortable...looking at the ingredients,  I see each caplet contains 100 mg of caffeine...I had take almost the entire bottle before I realized they were the cause of the problem...while I was on my trip I didn't notice any proble, but as soon as I got home and started taking these vitamins again, the increased heart rate happened again and stopped as soon as I stopped taking the vitamins again...needless to say, I threw the remaining caplets in the garbage can...I WILL NOT BE REPURCHASING THESE VITAMINS.
Rating: 1 stars