Assertion: methadone's duration | /r/HasProperty | short
Facets:
value: during the first days of therapy
type: TEMPORAL
value: relatively
type: DEGREE
Source sentences:
text: Dosage interval may range from 4–12 hours, since the duration of analgesia is relatively short during the first days of therapy but increases substantially with continued administration.217 223 227 Use caution to avoid overdosage.217