<prompt> Best treatment for Sickle cell anemia is:HydroxyureaSulphonamideIron InjectionBlood transfusion  <response>: a. HydroxyureaRef: Nelsons 20e p 2236-2345, Ghai 8e p 344-345Hydroxyurea increases HbF levels and so is used for treatment of sickle cell anemia. 