Assertion: barbital | /r/HasProperty | methylphenobarbital
Facets:
Source sentences:
text: Barbital, methylphenobarbital (also known as mephobarbital), and phenobarbital are designated schedule IV drugs, and "Any substance which contains any quantity of a derivative of barbituric acid, or any salt of a derivative of barbituric acid" (all other barbiturates) were designated as being schedule III.