Chemical substances that interrupt pregnancy after implantation.

A plant species of the genus PINUS that contains isocupressic acid.

Non-steroidal chemical compounds with abortifacient activity.

Steroidal compounds with abortifacient activity.

Plant-derived ribosome-inactivating protein (RIP) purified from the Chinese medicinal herb tian-hua-fen which is obtained from the root tubers of Trichosanthes kirilowii. It has been used as an abortifacient and in the treatment of trophoblastic tumors. GLQ223 (Compound Q), a highly purified form of trichosanthin, has been proposed as antiviral treatment for AIDS.

Premature expulsion of the FETUS in animals.

Intentional removal of a fetus from the uterus by any of a number of techniques. (POPLINE, 1978)

The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.