Assertion: morphine | /r/HasAspect | relative selectivity
Facets:
value: for the µ opioid receptor
type: OTHER
Source sentences:
text: Morphine has relative selectivity for the µ opioid receptor, although at higher doses it has been shown to have interaction with the κ and δ opioid receptors.3,4 Detection of morphine on a urine drug test provides information that morphine or a substance that metabolizes or contains morphine has been ingested in the preceding 2 to 4 days (Table 1).