<prompt> The progesterone of choice for emergency contraception is aEURNorethisteroneMedroxyprogesteronacetateLevonorgestrelDesogestrel  <response>: Levonorgestrel Ref: Dutra Obstetrics 6e, p 549-550; S.K. Chaudhuri Feility Control 6e, p 190-199; Novaks Gynaecology I4e, p 283-385. Repeat from Nov 09 Q no.154 