The term medical abortion is used when a medicine is given in order to perform a chemically induced abortion. The results are better if the medication is given earlier. There are various medications that might be used. Most of the women would abort within hours, but it can also take up to several weeks to complete the abortion. The complications are usually rare. Anyway, a prolonged bleeding might occur, that will need a suction.
Most doctors and researcher agree that a prior surgical abortion is not a contraindication for a medical abortion. However, the medical abortion has to be advised and led by a doctor after a complete examination of the woman.