All are tocolytics except: (A) Ritodrine, (B) Salbutamol, (C) Isoxsuprine, (D) Misoprostol
Answer is D. Misoprostol is indicated in cervical ripening prior to Labour whereas tocolytics inhibit uterine contractions and keep the uterus quiescent. Reference: Textbook of Obstetrics : Sheila Balakrishnan pg. 573,196