The most successful method (99 percent effective) of inducing an abortion using FDA-approved Abortion Pills is as follows: Step 1: Take a 200 mg pill of Mifepristone with a glass of water to prevent the hormone progesterone from lining the uterus during pregnancy. Step 2: To promote uterine contractions, take an 800 mcg misoprostol dosage up to 48 hours later. Misoprostol is used by placing the tablets in your mouth or vagina and letting them dissolve; thus, following the pills' directions is critical. Combined, the two drugs induce a miscarriage anatomically indistinguishable from one occurring spontaneously.