thalidomide

A sedative and hypnotic drug, C₁₃H₁₀N₂O₄, withdrawn from general use after it was found to cause severe birth defects when taken during pregnancy. It is currently used to treat leprosy.

(RS)-2-(2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)dione — C13H10N2O4 — A drug that was sold during the late 1950s and 1960s as a sleeping aid, and to pregnant women as an antiemetic to combat morning sickness and other symptoms, but was withdrawn after being proven to cause severe birth defects, such as phocomelia; currently used to treat leprosy.

a sedative and hypnotic drug; withdrawn from sale after discovered to cause severe birth defects because it inhibits angiogenesis