Assertion: alkaloid's activity | /r/AtLocation | vivo
Facets:
value: by combination of the benzophenanthridine alkaloids
type: CAUSE
Source sentences:
text: It is also known that such activity is produced in vivo by combination of the benzophenanthridine alkaloids with potentiating agents such as mineral or organic acid salts of zinc, tin, copper, iron, aluminum or other similar complex forming metal salts or organic compounds.