methadone
type: Concept
broader: analgesics

antipyrine
type: Concept
broader: analgesics

central nervous system drugs
type: Concept
narrower: analgesics

anti-inflammatory analgesics
type: Concept
broader: analgesics

drugs
type: Concept
narrower: analgesics

analgesics
narrower: methadone
narrower: salicylates
narrower: antipyrine
narrower: anti-inflammatory analgesics
narrower: distalgesic
narrower: paracetamol
narrower: dextropropoxyphene
narrower: piroxicam
type: Concept
broader: drugs
broader: central nervous system drugs

piroxicam
type: Concept
broader: analgesics

distalgesic
type: Concept
broader: analgesics

dextropropoxyphene
type: Concept
broader: analgesics

concepts
type: Collection
type: ConceptGroup
member: analgesics

salicylates
type: Concept
broader: analgesics

paracetamol
type: Concept
broader: analgesics