SALT LAKE CITY, Feb 28 ( – Writing in the February issue of the American Medical Association journal – Archives of Family Medicine, Physicians Walter Larimore and Joseph B.  Stanford clearly describe the three modes of action of the Pill. The professors from the University of South Florida and the University of Utah respectively write that:

“The primary mechanism of oral contraceptives is to inhibit ovulation, but this mechanism is not always operative. When breakthrough ovulation occurs, then secondary mechanisms operate to prevent clinically recognized pregnancy. These secondary mechanisms may occur either before or after fertilization.”

The MD’s conclude that, “the principles of informed consent suggest that patients who may object to any postfertilization loss (ed. Note – abortion) should be made aware of this information so that they can give fully informed consent for the use of oral contraceptives.”

See the full article from the AMA’s AFM journal.