<prompt> Which among the following drugs is used in ectopic pregnancy?MifepristoneMisoprostolMethotrexateOxytocin  <response>: Ans c Ref Williams Obstetrics page 247Tanaka associates first used methotrexate to treat an interstitial preg-nancy and then it has been used successfully with ectopic pregnancy. Patient selectionInitial S. B hcg lOOOmlUml-minimum failure rate size-ectopic mass3.5cmFetal cardiac activity is a relative contraindication to medical therapy.RegimenSingle dose-50mgm2 IM, follow up with serum b hcg2 doses- 50mgm2 IM on day 0 4Variable dose Mtx Imgm2 IM on 1,3,5,7With leucoverin on 2,4,6,8 