Assertion: potassium bromide | /r/HasProperty | superseded by chloral
Facets:
value: gradually
type: MANNER
Source sentences:
text: Potassium bromide and sodium bromide were used as anticonvulsants and sedatives in the late 19th and early 20th centuries, but were gradually superseded by chloral hydrate and then by the barbiturates.
text: Potassium bromide and sodium bromide were used as anticonvulsants and sedatives in the late 19th and early 20th centuries, but were gradually superseded by chloral hydrate and then by the barbiturates.