For Vomiting it works very fast, put a teasponn full in juice, let it sink to the bottom before mixing and drink. My daughter has various reactions to Chemo Drugs and Charcoal has been a life saver.
Also make sure you stay near the toilet or have your sick bag handy, Charcoal Vomit is terrible, it may take up to 3 doses of Charcoal before you can keep it down but it is very effective and will get rid of the Nausea at the same time.
I agree with this completely. My husband just had some serious stomach issues. He normally does not vomit in any way, but on the extreme rare occasion it is never good. So this time I had just bought Activated Charcoal just to get rid of toxins and I thought it might work for this. I looked it up on this website and saw that it would work, so I gave him two capsules of Activated Charcoal. He didn't vomit or have any more diarrea, he was doing both and feeling a lot of stomach pain before I gave it to him. He didn't feel purfect afterwards, but he did stop vomiting and diarrea. By the next day he was feeling fine.
I have been using charcoal for approx 14 yrs. In our home it has been used for nausea/vomiting; diarrhea; upset stomach; belching; heart burn; gas; indigestion; poultices over painful areas on different parts of the body; pasty poultice over insect bites..over the stomach in a poultice for fevers.. As a nurse, I highly recommend it to all.