A woman suffered a bizarre reaction to an antibiotic when the drug turned her tongue black and hairy, according to a medical journal.
The unnamed woman was suffering from rectal cancer and was given minocycline when she suddenly suffered side effects from chemotherapy.
But after taking the drug the woman, from Japan, developed black hairy tongue - a condition which is usually caused by poor oral hygiene, smoking and alcohol, according to Fukuoka University in southern Japan.
