safe to ingest in treating cases of poison and overdose Emergency rooms reduce the absorption of certain drugs inconclusive seen some filter using activated charcoal activated charcoal per WebMD activated charcoal activated charcoal Activated Charcoal for Poisoning activated charcoal charcoal s not useful in treating alcohol poisoning charcoal used to counteract some poisons and overdoses. Activated charcoal treat a drug overdose or a poisoning. activated charcoal that information from WebMD WebMD WebMD activated charcoal Activated Charcoal for Poisoning activated charcoal safe to ingest Web MD Activated Charcoal for Poisoning webmd.com little research treat certain forms of ingested poison facemask or even as eyeliner Activated Charcoal for Poisoning gastrointestinal blockages