I agree with everyone else. Check out the ingredients and definitely check out this company. The BBB will/should have information on this. Your friend may be back to work for right now but for how long. What are the side effects down the road and can this drink be taken with any of your friend's other meds. If this has grapefruit in it and he/she's on meds for cholesterol, the drink will kill the effects of the cholesterol meds. There are many natural herbs that people are allergic to also. Do your research first. Usually, it's the first few at the bottom who make the money and that's where it stop's.