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Important Info on the Birth Control Patch

Drug Interactions With the Birth Control Patch

The birth control patch can interact with a number of other medications (see Drug Interactions With the Birth Control Patch).

What If I Take an Overdose?

A birth control patch overdose is unlikely, for various reasons. However, women who take too much of a combined hormonal contraceptive (such as the birth control patch) may experience the following symptoms:
  • Nausea
  • Vomiting
  • Vaginal bleeding
  • Other menstrual irregularities.
(Click Ortho Evra Overdose for more information.)

Storage Methods

Store the birth control patch patches at room temperature, avoiding extreme temperatures. Keep each patch in its protective pouch until just before you apply it. Dispose of the patch by folding it in half and throwing it away (do not flush it).
Keep the birth control patch and all other medications out of the reach of children.

How Does the Birth Control Patch Work?

The birth control patch works in a similar way as combined oral contraceptives (birth control pills that contain both an estrogen and a progestin), although it is a patch, rather than a pill. It primarily works to prevent pregnancy by stopping ovulation (the maturation and release of eggs from the ovaries). However, it also prevents pregnancy in two other, minor ways. The birth control patch alters the cervical mucus (the fluid of the cervix, which is the lower, narrow part of the uterus that is connected to the vagina), making it more difficult for sperm to enter the uterus. The birth control patch also alters the lining of the uterus (called the endometrium), making it less receptive to an embryo.
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Birth Control Patch Information

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