It was pronounced va-lid-e-mide. Since my spelling is so poor I can assure you that I can not spell it. ;-)
http://www.yourdictionary.com/ahd/t/t0140100.html
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A sedative and hypnotic drug, C13H10N2O4, withdrawn from general use after it was found to cause severe birth defects when taken during pregnancy.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 sometimes prescribed to treat leprosy.
Thalidomide.