The FDA is warning people not to use pure powdered caffeine after the death of a teenager.  The drug is easily bought on the internet and just one teaspoon of the powder is equal to 25 cups of coffee.  This stimulant can cause irregular heartbeat, nausea, vomiting, seizures, and death.

• The FDA wants to know about adverse events associated with powdered pure caffeine and other highly caffeinated products. You or your health care provider can help by reporting these adverse events to FDA in the following ways:
• By phone at 240-402-2405
• By email at CAERS@cfsan.fda.gov