Hello, I have gone through your query and understood the concern. You can use any of the preparations mentioned since both of them contain the same drugs. In this context, I would like to mention that before going to induce the abortion it is mandatory to undergo a sonogram of the pelvis, preferably in the trans-vaginal method, to locate the gestation sac and also know the age of the pregnancy. This helps to avoid trying an abortion on an otherwise undetected ectopic pregnancy and also to take the proper dosage of the medication. Follow up is to be done after two weeks and this includes a clinical evaluation and a repeat sonogram. Hope this helps.