Assertion: arsenic's compound | /r/ObjectUse | used in medicine
Facets:
value: since the dawn of history
type: TEMPORAL
Source sentences:
text: Inorganic arsenic compounds have been used in medicine since the dawn of history and have been claimed to be effective in many diseases or where a tonic was indicated.
text: Some aarsenic compounds have been used as medicines.
text: Since the 1880s, when the arsenic compounds used in medicine were associated for the first time with human cancer, arsenic has been known to be carcinogenic, especially at low levels of exposure.30