Assertion: promethazine | /r/ObjectUse | used in association
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Leukopenia and agranulocytosis have been reported, usually when Phenergan has been used in association with other known marrow-toxic agents.
text: Leukopenia and agranulocytosis have been reported, usually when promethazine has been used in association with other known marrow-toxic agents.