Tocolytic therapy should be given for as short a
time as possible and promptly terminated once
contractions have ceased. There is no indication in
routine clinical practice for continuing tocolytic
therapy for more than 48 hours. Tocolysis for more
than 48 hours and after the cessation of contractions
is indicated only in exceptional cases (e.g., placenta
previa hemorrhage, amniotic sac prolapse).