Biochemistry is the study of the chemical substances and vital processes occurring in living organisms. Biochemists focus heavily on the role, function, and structure of biomolecules. The study of the chemistry behind biological processes and the synthesis of biologically active molecules are examples of biochemistry.
Mifepristone (or RU-486) is a synthetic, steroidal antiprogestogen and antiglucocorticoid pharmaceutical drug.ifepristone is sold in the United States by Danco Laboratories as Mifeprex and is U.S. Food and Drug Administration-approved to terminate intrauterine pregnancies of up to 49 days gestation.
Steril. 48:565-70 (1987). [TOP]. Definition: RU-486 is the name commonly used for an artificial steroid that blocks progesterone, a hormone needed to continue a pregnancy.2 Other names for RU-486: Mifepristone is the generic name for RU-486.In the U.S., RU-486 is sold under the brand names Mifeprex and Early Option.ote: An RU-486 abortion involves two drugs When taken alone, RU-486 causes a complete abortion only about 60% of the time.3 A second drug, a prostaglandin, is given 48 hours later to increase its effectiveness. The prostaglandin causes uterine contractions to help expel the embryo.