Emergency Contraception

Yuzpe Method Emergency Contraception

At A Glance:

  • Contraceptive pills can be used as emergency contraception after unprotected sex to decrease the chances of pregnancy.
  • Should only be used after unprotected sex, if another contraceptive method failed, or if no contraception was used.
  • Pills can be up to 88% effective if taken within 72 hours (three days) after unprotected sex. The sooner, the better.
  • The Yuzpe Method is not guaranteed as effective as the daily intake of pills as a regular contraceptive method.

What Is It

Emergency contraception lessens the chances of a woman getting pregnant if taken within the first few days after unprotected sex. It should be taken as a last resort when other contraceptive methods failed or were not used during unplanned sex.

You may want to use it if:

  • No contraceptive was used
  • A contraceptive was used incorrectly
  • A contraceptive was used correctly but was immediately observed to have failed
  • The condom broke, slipped, or was used incorrectly
  • Three or more combined oral contraceptive pills were consecutively missed
  • More than three hours have passed since the usual time of intake of the progestin-only pill
  • You are more than four weeks late for the depo injectable shot
  • Withdrawal failed and ejaculation occured in the vagina or on external genitalia

Emergency contraceptive pills are also called “morning after pills,” which gives the wrong impression that they should be taken the morning after unprotected sex, when in fact, they can already be taken as soon as possible without having to wait for the morning after.

The Yuzpe Method

In the Philippines, the daily oral contraceptive pills available can be used as emergency contraception through a specific method. The Yuzpe Method prevents pregnancy before it happens; it’s a backup plan, and should not be done regularly. If you are interested in taking oral contraceptive pills as a regular method of contraception, consult your healthcare provider to know more. It is also strongly advised to consult a healthcare provider when using the Yuzpe Method.

How It Works

Pregnancy doesn’t happen immediately after sex, which is why preventing it after unprotected sex is still possible. Take note: it can take up to seven days for the sperm cell and egg cell to meet after sex.

Pills prevent the sperm cell and egg cell from meeting and result in pregnancy by releasing a large dosage of the hormones estrogen and progestin in the body. Through this, the egg cell is stopped or delayed from leaving the ovary and traveling to the uterus for fertilization.

The Yuzpe Method lessens the chances of pregnancy to happen if taken within the first few days after unprotected sex; however, how much the chances are reduced depends on how soon the pills are taken after the incident, and at what stage the woman’s menstrual cycle is already when she takes it. The chances of getting pregnant are higher when the woman had unprotected sex during the 2nd or 3rd week of her menstrual cycle; this makes the effectiveness rate not absolute. It’s always better to use a regular form of contraception, such as a condom or the daily oral contraceptive pills.

How To Use It

Do the Yuzpe Method as soon as possible after unprotected sex. Although it can reduce the risk of pregnancy if used within 72 hours after the incident, taking it sooner makes it more effective.

Take four (4) Ethinyl Estradiol 30mcg/Levonorgestrel 150mcg, Ethinyl Estradiol 30mcg/Levonorgestrel 125mcg, or Ethinyl Estradiol 30mcg/Norgestrel 300mcg pills as soon as possible. Follow this with another dose of four (4) pills 12 hours later. You should be able to take a total of eight (8) pills.

Source: Family Planning Handbook 2018 & MIMS

If vomiting occurs within 2 hours after taking either of the doses, you need to repeat that dose. Remember, the sooner the pills are taken, the better.

It’s normal for your next period to be different from normal after taking emergency contraception.

  • It may come earlier or later than usual
  • It may be heavier, lighter, more spotty, the same as usual

You may also feel dizzy and nauseous after taking the pills.

The Positives

  • Pregnancy can be prevented after unprotected, unplanned or unsolicited sex.
  • Offers more protection and peace of mind than doing nothing.
  • Easy to use.

The Negatives

  • Can cause nausea, fatigue, an upset stomach and vomiting
  • Can cause breast tenderness, irregular bleeding, dizziness, headaches (short-term), and temporary changes to the menstrual cycle
  • The chance of preventing pregnancy is higher the closer the Yuzpe Method is used in the time after unprotected sex. Generally, within 72 hours after is the effective period. Beyond that, it cannot guarantee effective protection.


Department of Health. The Philippine Clinical Standards Manual on Family Planning (2014 Edition). Manila, Philippines: DOH. 2014. Pp231-239



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747 thoughts on “Emergency Contraception

  1. Hello! Nung March 9-14 may mens ako then my bf and i had an unprotected sex nung 16. March 18 na ko nakapag yuzpe method tapos nung March 24-28 nagka mens ulit ako. Ngayon yung expected period ko ulit pero brown discharge nalabas sakin. Gusto ko lang maclarify kung anong ibigsabihin non? Effect po ba ng pills yun? Trust pills ginamit ko.Thank you.

  2. Hi i just want to ask if prescription is needed po when buying trust pill? I will use it sana po for ecp. Thank you

  3. Hello! My wife and I had sex on the third day of her period, I accidentally came inside her but right after that we took the Yuzpe method which is 4 pills and after 12 hours 4 pills again, her bleeding till now is moderately heavy, we are still not ready for pregnancy we just wanted to know how effective it will be in preventing her being from being pregnant. Thank you!

  4. I follow the instructions for Yuzpe Method. 1st dose is 10:34am and 2nd is 10:34pm. Pero sumuka ako at 1:40am. is it normal and do i need to repeat the dosage?

    1. Hi, Lovely! As you have read in this article, you only need to repeat the dose if you vomited within 2 hours of taking the pills. Did you vomit within 2 hours? If it’s beyond 2 hours already, no need to repeat the dose.

  5. Hi! My gf followed yuzpe method. What’s bothering me is that sa lady pills, sa first 4 pills, nainom niya is number 1,2,3, and 4. The next 12 hours is number 5,6,7 and 14. Na bother po ako sa pang number 14 na pills na nainom nya kasi expected namin number 8 yung kasunod, nagkamali lang ng pag take. Okay lang po ba yan? Mag mamatter po ba yan or as long as same dosage lang siya? Thank you.

    1. Hi, Brian! Yes, that okay. The dosages of the pills (of the same color) are the same, the numbers just serve as a guide for those taking the pills daily.

  6. Magiging effective pa rin po ba yung yuzpe method kung may nangyari po sa araw ng ovulation tapos after 19hrs lang po nakapag yuzpe method? 6:46am tin-ake yung first dose (4pills) then 6:46pm naman po yung second dose (4pills)

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