What is a famous poison that turns your tongue black
Black tongue may result from smoking, poor oral hygiene, use of antibiotics, or use of antacids and some types of mouthwash. [ Source: http://www.chacha.com/question/what-is-a-famous-poison-that-turns-your-tongue-black ]
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- What famous poison turns your tongue black?
- http://wiki.answers.com/Q/What_famous_poison_turns_your_tongue_black
- From what I read in Angels and Demon, an anticoagulant called ‘heparin’ can cause death upon overdose and the victim’s mouth and tongue will turn black. I wonder if this is true.