Assertion: patent medicine | /r/HasProperty | common
Facets:
value: until the 20th
type: TEMPORAL
value: from the 18th century
type: TEMPORAL
value: extremely
type: DEGREE
value: among vendors
type: OTHER
Source sentences:
text: Patent medicines that claimed to be a panacea were extremely common from the 18th century until the 20th, particularly among vendors masking addictive drugs such as cocaine, amphetamine, alcohol and opium-based concoctions or elixirs, to be sold at medicine shows as medication or products promoting health.