The ancient Greeks relied upon the herb silphium as an abortifacient and contraceptive. The plant may also have functioned as a contraceptive and abortifacient. Therefore, the copper IUD is considered to be a true contraceptive and not an abortifacient. It has been used as a method of contraception and an abortifacient for centuries. Mifepristone, also known as RU-486, an abortifacient, was banned in Australia until February 2006. Pennyroyal has been known to cause complications when used as an abortifacient. "Peganum harmala" has been used as an analgesic, emmenagogue, and abortifacient agent. Dragon's blood is used as a stimulant and abortifacient. Fenugreek is likely not safe for use during pregnancy as it may have abortifacient effects. As a qualified pharmacist, Michael Oluronbi was able to access abortifacient medicines himself. Savin was used in abortifacient drugs in 19th century America. However, the medication faces considerable controversy due to its use as an abortifacient. It is specifically used as an abortifacient in pregnant animals. Early folk medicine used the crushed plant internally and externally as an abortifacient. Hellebore, in particular, is known to be abortifacient.