Birth Control Patch
What it is . . .
The contraceptive patch contains a combination of low dose hormones. The patches are applied weekly for three weeks and removed for a fourth week, usually when a woman has her period.
How it works . . .
The patch, basically 'tricking' the body into thinking that it is
pregnant, works in several ways:
1. Prevents the ovaries from releasing an egg by changing the woman's hormone levels
2. Changes the lining of the uterus (endometrium) making it harder for the fertilized egg to implant
3. The hormones cause changes in the cervical mucus making it more difficult for sperm to get to the egg
Who shouldn't take it . . .
Women who have a personal or family history of the following should seek advice from their doctor about taking the pill:
1. Smoking (more serious concern for 35+)
2. Reproductive system cancer
3. Asthma
4. Epilepsy
5. Diabetes
6. Acne
7. Heart or circulatory problems
8. Liver problems
9. Blood clots
10. High blood pressure
11. Gallbladder disease
12. Undiagnosed vaginal bleeding
13. Depression
14. Uterine cysts
15. Migraines
16. Breast cancer
17. Skin sensitivity or irritation
What are the side effects . . .
Milder side effects that will usually subside within 3 months:
1. Irregular bleeding ("spotting")
2. Breast tenderness
3. Nausea
4. Headache
Other side effects:
1. Local skin reaction
Major (rare) risks of the patch
1. Blood clot (three to four times more likely to develop a blood clot), which could lead to a stroke
2. Gallbladder disease eith indigestion and abdominal pain
3. Hypertension (high blood pressure)
Effectiveness Rates . . . Perfect use: 99.7%, Typical use: 92%
The patch is usually effective if you apply it within 24 hrs after beginning menstruation. However, if
you are unable to begin at that time, it is recommended that you use backup contraception for the first 7 days.
Women should be advised that there can be many drug interactions with the patch
and that they should use a back up method when taking other medications (even over the
counter cold remedies can sometimes interfere - it is a good idea to check with a pharmacist).
Where to get it . . .
Contraceptive Patches are available by prescription at Sexual Health Centre Saskatoon after a consultation with the nurse. The price of the patch is $9 a month. Or you can go to the pharmacy of your choice with prices ranging from $30-$40 for a one month supply. Doctors will sometimes give a one month supply for free at first.
How to use it . . .
Apply a new patch on the same day of the week for 3 consecutive weeks, total of 21 days. Your menstrual period should be patch-free. On the day after week 4 ends, begin a new 4-week cycle by applying a new patch. Apply the first patch during the first 24 hrs of your menstrual cycle. This is considered your Patch Change Day (PCD).
If the patch isn't applied within the first 24 hrs, a non-hormonal
backup contraception, such as a condom or spermicide, should be used
for one week after starting the patch. On day 8, remove the first
patch and apply another one in a different place in order to avoid
irritation.
Where to apply the patch . . .
You can wear the patch on your buttock, abdomen, upper torso (excluding the breasts), or on the outside of your upper arm. Try to avoid placing the patch in the exact same spot each week (to avoid irritation), however it needs to remain in the same place for 7 days at a time. Always apply your patch to clean, dry skin. Avoid skin that is red, irritated, or cut.
If it seems loose or detatches . . .
If the edges on your patch lift up, press down firmly on the patch with your palm for 10 seconds to ensure that the edges stick well. If
it does not stick, replace it with a new patch. Adhesives or wraps should never be used to hold it in place. If the patch
has been off or partially off for less than 24 hrs, you can try to reapply the old one or put a new one on immediately. Replacements
are available for free through Sexual Health Centre Saskatoon or selected pharmacies. No backup contraception is needed and the PCD
remains the same.
If it has been more than 24 hrs, or if you're unsure how long the
patch has been loose, remove the old patch and apply a new one immedietly.
If you have had intercourse during this time, a discussion of emergency
contraception may be warranted. You will now start a new 4-week cycle
and a new PCD. You should also use backup contraception for the first
week of your new cycle.
If you forget to change your patch . . .
If you forget to change your patch after week 1, use backup contraception for 1 week and apply a new patch
as soon as you remember. You will have a new day 1 and a new PCD. If you forget to change your patch during
week 2 or 3, by only 1 or 2 days, apply a new patch right away. The next patch should be applied on your normal
PCD and no backup contraception is needed.
If it has been more than two days past your PCD during week 2 or 3, you MUST use backup contraception to avoid pregnancy. If
intercourse did occur, a discussion of Emergency Contraception may be warranted. Remove the old patch and start a new 4-week
cycle. If you forget to take your patch off during the 4th week, take the patch off as soon as you remember and
start your next cycle on your normal PCD. No backup contraception is needed.