Caffeine may temporarily help you retain alertness, but when the effects wear off, you can be left more exhausted than before. Caffeine has been associated with insomnia, mood swings, diarrhea, and depression.
Common symptoms include irregular bowel movements and diarrhea. Severe abdominal pain, bloating and electrolyte disturbances are also observed as side effects of using laxatives.
It would be nice to think that all you have to do is to pop a pill. Many of the products on the list contained Sibutramine, which is a controlled substance that can cause high blood pressure, seizures, rapid heartbeat, palpitations, heart attack or stroke. Also, there will be a potential, rare occurrence of liver failure if you take these medicines.