<prompt> Management of unruptured tuba! pregnancy includes:MethotrexateProstaglandinsHysterectomyLaparoscopic salpingostomy  <response>: It is an antineoplastic drug acts as a folic acid antagonist and is very effective against proliferating trophoblast .It prevents conversion of folic acid to folinic acid.it directly impairs trophoblastic production of bete hcg with a secondary decrement of corpus luteum progesterone products. 