<prompt> Low dose OCPs contain:LevonorgestrelDesogestrelNorgestrelNorethisterone  <response>: Ans. is b, i.e. DesogestrelRef: Reffcoate 7thed, p802, Dutta Gynae 6thed, p465; SK Chaudhary 7thed, p120-130Low dose OCPs on 3rd generation OCP have desogestrel. 