1. Medical or therapeutic care that extends over a long period of time; treatment that is lengthy or extended in duration
The patient underwent protracted treatment for chronic illness over several years.
O paciente foi submetido a um tratamento prolongado para doença crônica durante vários anos.
2. Any form of intervention or management that requires an extended timeframe to achieve desired results
Protracted treatment of the addiction required patience and commitment.
O tratamento prolongado da dependência exigiu paciência e compromisso.