system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 32 week pregnant female presented with labor pain. She was given tocolytics. Which of the following is a tocolytic agent?
assistant
The correct answer is  Betamimetics include ritodrine, terbutaline, albuterol, fenoterol, hexoprenaline, isoxsuprine, metaproterenol, nylidrin, orciprenaline, and salbutamol, they have been used extensively as tocolytic agents. Ritodrine, isoxsuprine and terbutaline are the beta-2 receptor agonists most commonly used. Also know: Other agents used as tocolytic agents are calcium channel blockers, prostaglandin synthase inhibitors, magnesium sulfate, nitric oxide donor and oxytocin receptor antagonists. Ref: Management of High-Risk Pregnancy: A Practical Approach By S. S. Trivedi, Manju Puri, M.D., 2011, Page 81, 82; Danfoh's Obstetrics and Gynecology 10th Edition, Page 175-178.