Atosiban acetate is primarily used in medical settings to manage preterm labor. It acts as an oxytocin receptor antagonist, effectively inhibiting uterine contractions. This makes it a valuable therapeutic agent for delaying premature birth, allowing time for administering corticosteroids to enhance fetal lung maturity. It is typically administered intravenously in controlled clinical environments to ensure its efficacy and safety. Its targeted action on the oxytocin pathway helps stabilize uterine activity, providing a critical window for medical interventions aimed at improving neonatal outcomes.