Emergency contraceptives are the contraceptive methods used to prevent pregnancy in the period of unprotected sexual life or failure of contraception. Drug contraception is the most commonly used method of contraception.
Women who have unprotected sex for accidental injuries or other reasons, or who have failed contraceptives such as condom breakage, slippage, or miscalculated safety periods may consider taking emergency contraceptives, which are effective within 72 hours after the sexual intercourse, or reckon when they have sex again during the medication.
A common class of emergency contraceptives is a single progesterone, levonorgestrel, an over-the-counter drug. This 72 hour emergency contraceptive is represented by the new snooe dropping pills and Yu Ting. The earlier the emergency contraceptive is, the better the effect of preventing pregnancy. No fasting is necessary before and after taking.
Another type of emergency contraceptives is antiprogesterone, the most commonly used is Houdinol, in addition to Simian tablets, Biyun capsules, Huadian tablets, effective ingredients for mifepristone, are prescription drugs.
This medicine only needs to take one tablet, before and after taking the medicine two hours fasting, after taking the pregnancy rate can be reduced to 1.4%, fewer side effects, side effects. Others have menstrual changes. If there is vomiting within two hours after taking the medicine, if the drug is spit out, the same dose of medicine should be supplemented.
Side effects of emergency contraceptives
Because of the effect of emergency contraceptives, it can produce nausea, vomiting, irregular uterine bleeding, menstrual changes and other side effects. After taking the pill for a period of time, it can be relieved. If the symptoms do not persist for a long time, it is necessary to stop taking the pill and see a doctor.
1. Nausea: The most common side effects of nausea, about 50%; levonorgestrel followed by about 20%; mifepristone was the lowest, about 6%-7%. Nausea usually lasts for no more than 24 hours.
2. Vomiting: About 20% of women with emergency contraception by Yuzpe method vomit; about 5% of levonorgestrel; about 1% of mifepristone. If you vomit within 1 hours after taking the pill, you should take it 1 times as soon as possible.
3. Irregular uterine bleeding: Some women will have some X-drip bleeding after medication, generally do not need to deal with, before medication to do a good job of consultation.
4. Change of ovulation period: Taking emergency contraceptives will affect the menstrual cycle, so it will be difficult to calculate the safe period in the following months.
5. Menstrual changes: If menstruation is delayed for one week, urinary pregnancy tests should be done to determine whether emergency contraception fails.
6. Others: Breast pain, headache, dizziness, fatigue, etc., these symptoms are generally mild, lasting no more than 24 hours. Breast pain and headache can be treated with aspirin or other painkillers.
Does emergency contraceptive affect menstruation?
Some women have irregular menstruation after taking emergency contraceptives, premature menstruation and delayed menstruation. If they take emergency contraceptives for 72 hours during the first half of the menstrual cycle, they may have a greater impact on menstruation. In the latter half of the menstrual cycle, the interference to menstruation is relatively small.
If the amount of bleeding during the use of emergency contraceptives is similar to the amount of menstruation in peacetime, it can be treated as a menstrual period, after the bleeding should be taken immediately after routine contraceptive methods. If the amount of bleeding is relatively small, do not deal with it, but also pay attention to contraception until the next menstrual tide.
Most women with irregular menstruation recover to normal within 2-3 months after taking the medicine. If the menstrual disorder lasts for a long time, they should go to the hospital for relevant examinations.
How to eat emergency contraceptives?
The emergency contraceptive pill can only be eaten once a month.
1, do not take too much. It is usually used at least once a month, and is not suitable for continuous use.
2, the earlier the medication, the better the effect. Take one tablet in 72 hours and take another 12 hours. The total amount is 2 tablets.
3, supplement service. 2 hours after taking the medicine, vomiting must be immediately taken. If there is sexual activity after taking medicine, contraceptive measures should be adopted.
4, avoid using diseases. Cardiovascular patients, diabetics, breast cancer patients, breast-feeding women within six months of postpartum and people who have been identified as pregnant are prohibited from using this drug.
When does the emergency contraceptive take effective?
Emergency contraceptives are usually taken within 72 hours after the first pill, 12 hours after taking a pill, the earlier the effect is better. It should be noted that when taking the medicine, generally take it on an empty stomach or two hours after taking it do not eat, so that will not affect the efficacy of the medicine.
After oral emergency contraception, no contraceptive sexual activity can occur in this menstrual cycle. If there is more sexual activity, we should adopt conventional methods of contraception. If menstruation is out of date, you should go to the hospital for a pregnancy test to determine whether emergency contraception fails.
What kind of emergency contraceptive is good?
Emergency contraceptives are divided into two types, the most common of which is a large dose of progesterone, which is used once. The dose of progesterone is generally equivalent to the short-acting oral contraceptive dose of 8 days. The effective rate is 80% – 85%.
Because the dosage is too large, it will interfere with normal endocrine, lead to menstrual cycle disorders, irregular vaginal bleeding and other symptoms, repeated use will have an impact on health, such as menstrual disorders, amenorrhea, damage to liver and kidney function, and even lead to irreparable lifelong regrets such as infertility.
Another is anti progestin. The common anti – progestin emergency contraceptive is the latter, also known as mifepristone. Just one piece after that. Patients with heart, liver and kidney diseases and women with adrenal insufficiency are forbidden.
The first of these emergency contraceptives consists of levonorgestrel. The levonorgestrel emergency contraceptives are of two specifications:
One is 0.75 mg, taking method is in unprotected sexual life or contraceptive failure within 72 hours, the earlier the drug, the better the effect of preventing pregnancy, a single oral 2 tablets, or the first oral 1 tablet, 12 hours interval 2 tablets;
One is 1.5mg, taking method is in unprotected sexual life or contraceptive failure within 72 hours, the earlier the drug, the better the effect of pregnancy prevention, a single oral tablet.