For a medical abortion to give a successful result, you need to use the pills correctly. One of the medicines that women take for pregnancy termination is Cytotec or Cytolog. Both have the same function as Misoprostol. They induce uterine contractions and widen the cervix. As an outcome, the womb empties itself through the breaking of the endometrial lining. Progesterone, a pregnancy hormone becomes unavailable.