# Oral contraceptives are not the only effective contraceptives {#article-title-2} Editor—In their paper on the prospect of screening potential oral contraceptive users for the thrombogenic variant factor V Leiden, Jan P Vandenbroucke and colleagues conclude that such a strategy would “deny effective contraception to about 5% of white women while preventing only a small number of fatal pulmonary emboli.”1 Their persistent use of the term “oral contraceptives” fails to distinguish clearly between progesterone only …