Vegetable Charcoal is a homeo remedy for people with blue blood from copper toxicity. After some work I find it isn't the copper that oxidizes carbon but Hg which also does the same to copper.
Anyhow, one should either buy the homeo or be on the doctrine because carbon binds with stuff like Mumps, Measles and Herpes. So breaking that bond without frqs too fast may be a less than happy experience...