Contraceptive patch

Contraceptif patch

The contraceptive patch is a birth control method introduced in Canada since January 2004. It is a 4 cm x 4 cm beige patch stick on the skin, releasing continuously estrogen and progestin into the blood.

How does it work?

  • The contraceptive patch will prevent the ovaries from releasing the ovum and will thicken the cervical mucus, making it difficult for sperms to reach the ovum. It also changes the internal wall of the uterus, which makes it difficult for the ovum implantation. It is similar to contraceptive pill usage.
  • The patch is worn on the skin for 7 days and has to be changed every week for 3 weeks (Ideally use the same day of the week to process the patch change). You should not wear the same patch for more than 7 day consecutively. On the fourth week, no patch is needed, in order for the menstrual cycle to start. After the seventh’s day with no patch, a new contraceptive cycle can start as soon as you apply the new first patch.
  • The contraceptive patch can worn on the buttocks, stomach, back, or near the shoulders except on the breasts. It needs to be stick on clean and dry skin and a rotation of where the patch is placed can increase effectiveness of the patches. This contraceptive device is 98% water resistant and cream and/or lotion should not be applied near the patch or where the new patch will be stick onto.


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  • Failure rate by actual use: 90 women over 1000 in the course of first year usage;
  • Failure rate by theoretical use: 3 women over 1000 in the course of first year usage.


The contraceptive patch is less effective on women weighing more than 198lbs (90kg).

  • Very effective, reversible, and safe
  • No interruption on your sex life
  • Decreases cramps and menstrual flow
  • Regularization of menstrual cycle and decrease of premenstrual symptoms
  • Reduces the risks of endometrial, ovaries, and/or colon cancer
  • Reduces the risks of fibroids and ovarian cysts
  • Can cause light or irregular bleeding
  • Acne, headache, and breast sensitivity
  • Can irritate your skin
  • Can be less effective in women weighing more than 198lbs (90 kg)
  • Does not protect against STIs