DEPO-PROVERA Contraceptive Injection also causes changes in the lining of your uterus that make it less likely for pregnancy to occur. – Pharmacia & Upjohn, Depo-Proveraâ Patient Information sheet.
Although the primary mechanism of this action is inhibition of ovulation, other alterations in the genital tract, including changes in . . . the endometrium (which may reduce the likelihood of implantation) may also contribute to contraceptive effectiveness. – Searle, Demulenâ "Prescribing Information" sheet.
MICRONOR progestin-only oral contraceptives prevent conception by suppressing ovulation in approximately half of users, . . . and altering the endometrium. – Ortho-McNeil, Micronor "Prescribing Information" sheet.
Although the primary mechanism of this action is inhibition of ovulation, other alterations include changes in . . . the endometrium (which reduce the likelihood of implantation). – Otho-McNeil, Ortho Tri-Cyclenâ Tablets "Prescribing Information" sheet. The exact same statement is printed in the Ortho EvraTM "Prescribing Information" sheet. Ortho Evra is the new transdermal system patch.
Although the primary effect of this action is inhibition of ovulation, other alterations include changes in the cervical mucus (which increase the difficulty of sperm entry into the uterus) and the endometrium (which reduce the likelihood of implantation). – Organon, NuvaRing "Full Prescribing Information."
The synthetic estrogen . . . alters the secretions within the uterus. . . . The progestin . . . hampers implantation. – Byer, Shainberg, Galliano Dimensions of Human Sexuality 5th Edition (Boston: McGraw-Hill College) 1999, p.470.
In actuality, oral contraceptives, particularly the minipill, do not always prevent ovulation, but they are still effective because they have other contraceptive effects. . . . they also inhibit the estrogen-induced proliferation of the endometrium, making it inhospitable for implantation. – Vander, Sherman, Luciano Human Physiology : The Mechanisms of Body Function (Boston: WCB/McGraw-Hill) 1998, p. 677.
