<prompt> Drug that does not prevent preterm labor is:RitodrineAtosibanDexamethasoneNitroglycerine patch  <response>: Dexamethasone REF: See APPENDIX-64 for list of Tocolytic agents Steroids are given in preterm labor for fetal lung maturity and not as tocolytic agent Nitroglycerine is also a tocolytic agent not listed in the APPENDIX-64 as it is not used routinely not recommended 