Carboprost is primarily used in medical settings to control postpartum hemorrhage, which is excessive bleeding following childbirth. It works by causing the uterus to contract, helping to reduce bleeding. Additionally, it is employed in terminating pregnancies during the second trimester by inducing uterine contractions and cervical dilation. In some cases, it is also used to manage incomplete or inevitable abortions. Its effectiveness in these applications makes it a critical drug in obstetric and gynecological care.