ORTHO
EVRA CONTRACEPTIVE PATCH
Student
Information Sheet
What
is the contraceptive patch?
The contraceptive patch is a weekly hormonal birth control method
that is worn on the skin to prevent pregnancy. Like birth control
pills, it contains a combination of estrogen and progestin which are released
continuously through the skin into the bloodstream. These hormones
work to prevent ovulation. They also thicken the cervical mucus
(making it difficult for sperm to penetrate) and cause the uterine lining
to be thinner (making implantation of a fertilized egg unlikely).
How
effective is the patch?
When used
correctly, the contraceptive patch has a comparable rate of effectiveness
as oral contraceptives, about 97-99%. The patch is less effective
for women who weigh more than 198 pounds.
What
are the possible side effects?
The most common side effects reported with the patch are breast tenderness,
headache, nausea and reactions at the application site. Other side
effects may include irregular vaginal bleeding, mood changes and vaginal
infections.
Are
there any serious risks associated with the patch?
The serious risks associated with the contraceptive patch occur rarely.
Serious risks, which can be life threatening, include blood clots, stroke
or heart attacks. Cigarette smoking increases the risk of serious
side effects, especially if you are more than 35 years old. Women
who use hormonal contraceptives are strongly advised not to smoke.
Women
with the following medical conditions should not use the contraceptive
patch:
- Blood
clotting disorders or history of blood clots such as deep vein
thrombophlebitis
- Current
or past history of heart disease or blockage of blood vessels
- Severe
high blood pressure
- Diabetes
with blood vessel complications
- Headaches
with focal neurological symptoms
- Recent
surgery with prolonged bedrest
- Known
or suspected cancer of the breast or personal history of breast cancer
- Undiagnosed
abnormal uterine bleeding
- History
of jaundice (yellow pigment to the skin) during pregnancy or with prior
hormonal contraceptive use
- Acute
or chronic liver disease with abnormal liver function
- Liver
tumors or cancer
- Known
or suspected pregnancy
How
do I use the contraceptive patch?
The contraceptive patch uses a 28-day, or four-week, cycle.
You should apply a new patch each week for three consecutive weeks, for
a total of 21 days. The fourth week you do not wear a patch.
Each
new patch should be applied on the same day of each week.
For example, if you apply your first patch on a Monday, all of your patches
should be applied on a Monday. Apply a new patch for Week
2 and Week 3 on a Monday. Do not wear a patch during Week
4. Your period should start during this week. On the day after
Week 4 ends, you should begin a new four-week cycle by applying a new
patch. Begin this new cycle on your “patch change day”
no matter when your period begins or ends.
You should
wear only one patch at a time. Wear the patch continuously for seven
days. On Day 8 and 15, remove the used patch, discard it, and apply
a new one immediately. Do not apply the new patch to the same place
on your skin where the previous patch was placed. If a ring of adhesive
is left on your skin, remove it by rubbing a small amount of baby oil
on the area.
How
do I begin using the contraceptive patch?
There are many ways to start using the patch. If you start using
the patch on the first day of your period, the patch will be effective
immediately and you do not need to use back up birth control. If
you do not begin using the patch on the first day of your period, you
will need to use a non-hormonal backup method for one full week.
Never begin using the patch if there is any chance of pregnancy.
Where
can I wear the contraceptive patch?
You
can wear the contraceptive patch on one of four areas of the body: your
buttocks, abdomen, upper torso (front or back, excluding the breasts),
or upper outer arm. Apply the patch by pressing down firmly on the
patch with the palm of your hand for 10 seconds, making sure the edges
stick well. The patch remains attached and effective even when you
bathe, swim, exercise, or wear it in humid conditions. You should
not place the patch on skin that is red, irritated or cut. Do not
apply makeup, lotion, cream, powder or other products at the patch site.
Do not write, decorate, cut or alter the patch in any way. This
may cause the patch to be less effective.
How
do I change my “patch change day”?
If you wish to move your “patch change day” to a different
day of the week, finish your current cycle, removing your third consecutive
patch on the correct day. During week 4, choose a new patch change
day by applying a new patch on the day you prefer. You now have
a new Day 1 and a new patch change day. You should never have the
patch off more than seven days in a row.
What
if I forget to change the patch?
At the start of any patch cycle-Week 1 (Day 1):
If you forget to apply your patch, you must use backup birth control for
one week to prevent pregnancy. Apply the first patch of your new
cycle as soon as you remember. You now have a new patch change day
and Day 1.
In
the middle of your patch cycle-Week 2 or Week 3:
If
you forget to change your patch for one day, remove the patch as soon
as you remember and apply a new patch. Apply your next patch on
your normal patch change day. No backup birth control is needed.
If you forget to change your patch for two days or more, you could become
pregnant. Start a new four-week cycle as soon as you remember by
removing the old patch and applying a new patch. You now have a
different patch change day and a new Day 1. You will need to use
non-hormonal backup birth control for the first week of your new cycle.
At
the end of your patch cycle-Week 4:
If you forget to remove your patch, take it off as soon as you remember.
Start your next cycle on your normal patch change day. No backup
birth control is needed.
What
should I do if a patch seems loose, starts to lift off my skin, or falls
off?
For less than 24 hours: You should try to reapply
it or apply a new patch immediately. Do not use tapes or wraps to keep
a patch in place. No backup contraception is needed, and your patch
change day will remain the same.
For more than 24 hours: Start a new four-week cycle
immediately by applying a new patch. You now have a new Day 1 and
a new patch change day. You must use backup birth control
for the first week of your new cycle.
Are
there special intructions for storage?
Patches should be stored in their protective pouches. When you remove
the patch from its pouch, apply it immediately to the place on your skin
that you’ve cleaned and dried. Store the pouches at room temperature.
Do not store pouches in the refrigerator or freezer.
Does
it matter which patch I use from the box?
No. Each patch delivers the same amount of medication each week;
therefore, the patches can be used in any order.
Can
I take other medications while I’m using the contraceptive patch?
Certain drugs may interact with hormonal contraceptives, including the
patch, to make them less effective in preventing pregnancy or cause an
increase in breakthrough bleeding. Such drugs include rifampin,
drugs for epilepsy such as barbiturates (for example, phenobarbital),
anticonvulsants such as topiramate (Topamax), carbamazepine (Tegretol),
phenytoin (Dilantin), phenylbutazone (Butazolidin), certain drugs used
in the treatment of HIV or AIDS and possibly some antibiotics. The
herb known as St. John’s Wort may also make the patch less effective. As
with all prescription products, you should tell your health care provider
about any other medications you are taking. You may need to use
non-hormonal backup birth control when taking certain other medications.
When
should I contact Health Services?
Call Health Services immediately if you have any of the following
symptoms:
- Unusual
pain or swelling in the arms or legs
- Sharp
chest pain or shortness of breath
- Severe
abdominal pain
- Severe
headaches
- Sudden
change in vision
- Fainting
or dizziness
- Heavy,
prolonged vaginal bleeding
Does
the patch protect me against sexually transmitted infections?
The contraceptive patch does not protect you from sexually transmitted
diseases including HIV. Health Services recommends the use of latex
condoms in combination with the patch to protect yourself from STDs.
SCHS: CJA 10/02
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Smith College Health Services
// Northampton, Massachusetts 01063 // (413) 585-2800 |