morphine
definition: Morphine is a potent narcotic drug that directly affects the central nervous system. It is one of the main alkaloids extracted from the opium poppy. [Source: Encyclopedia of Drug Policy; Morphine]
broader: types of drugs
broader: opiates
broader: drug classification
type: Concept

drug classification
type: Concept
narrower: morphine

types of drugs
type: Concept
narrower: morphine

concepts
type: Collection
type: ConceptGroup
member: morphine

opiates
type: Concept
narrower: morphine