Contraceptives are used to prevent unplanned pregnancy. Some of them are used regularly and contain small doses of hormones, while others are indicated only in emergency cases, no more than 1-2 times a month. In our article we will talk about one of the drugs of the second group, and find out whether it is possible to get pregnant after taking Postinor, and why this happens.

How does Postinor work?

The active ingredient of the drug is levonorgestrel, which has the following capabilities:

• Inhibits the release of the egg from the ovary;
• Inhibits fertilization;
• Prevents the attachment of the embryo in the uterus, that is, it is almost impossible to get pregnant after postinoration

Judging by this effect on the reproductive system, it seems that conception should not happen, but life shows the opposite. Quite often there are cases when you can get pregnant after taking postinor.

Indications for use of Postinor

• Emergency contraception during unprotected contact;
• When a condom breaks;
• A regularly taken oral contraceptive is not taken on time.

But it is not recommended to get carried away with this remedy, since it negatively affects the consequences of getting pregnant after postinor, a strong negative effect on the state of hormonal levels, causes a delay of menstruation by up to 5 days, uterine bleeding, and due to menstrual irregularities, the formation of cysts on the ovaries, as well as infertility .

Reasons for conception while taking Postinor

The rules of protection are as follows:

• Use any day, does not depend on food intake;
• Take the first tablet (there are two in total) within 48 hours after intercourse to avoid getting pregnant after postinor, but not later than 72 hours. It prevents fertilization;
• The second tablet is taken 12 hours after the previous one and blocks implantation.

Is it possible to get pregnant after Postinor?

Untimely use or violation of the instructions will lead to the fact that you can get pregnant after postinor, regardless of its effect on the condition of the woman’s reproductive system. The sooner the pill is taken, the greater the chance of avoiding conception.

Statistics show that it is possible to get pregnant after postinor, less if the medicine taken in the first 24 hours is 95% effective, and after 48-50 hours, its effect decreases to 58%.

Adverse reactions are observed: nausea, diarrhea, menstrual irregularities, breast tenderness.

Contraindications when taking Postinor

Contraindications are:

• Puberty;
• Liver and kidney diseases;
• Tendency to thrombosis;
• Bleeding of unknown etiology;
• Alleged pregnancy.

In what cases can you get pregnant after taking the Postinor pill?

Although under the influence of this drug an early miscarriage essentially occurs, you can become pregnant after taking the Postinor pill in the following situations:

• Due to individual reactions to the action of this remedy;
• If its effectiveness decreases due to the use of other medications used, for example, to treat fungal diseases, tuberculosis, epilepsy;
• In case of impaired absorption in the intestine (Crohn's disease).

Is it possible to get pregnant after Postinor in a month?

Many women, having studied the instructions for this product and read all sorts of conflicting literature, after using it, worry whether it is possible to get pregnant after postinoration in a month, whether there will be a negative effect on conception. It all depends on the condition of the body and the speed of restoration of your menstrual cycle. The ability to normalize hormonal levels varies from person to person. When ovulation occurs already in the next rhythmic process, it is clear that you can get pregnant after postinoration in a month under favorable circumstances.

You can get pregnant after Postinor in a week

Although studies have shown that it is possible to get pregnant after postinor in a week, and the drug only interferes with the implantation of the embryo, and has no effect on the fetus itself, and if implantation of the fertilized egg has occurred, then nothing else threatens it, levonorgenstrel is considered a rather severe drug for the female genital area.

Is it possible to get pregnant after Postinor in the future?

In the video review, the doctor explains whether it is possible to get pregnant after Postinor in the future: in a week or in a month, and what is better to choose interrupted coitus or Postinor?

Conclusion

Therefore, despite the fact that you can get pregnant after postinor in a week, and you can get pregnant after postinor in the future, it is better to choose safer drugs for protection, and use them as rarely as possible and only as a last resort.

Postinor is an emergency contraceptive that helps prevent unwanted pregnancy if sexual intercourse has already taken place.

ATTENTION: The drug has contraindications. Do not start using this drug without first consulting your doctor.

Composition of tablets and packaging

One Postinor tablet contains the hormone levonorgestrel in a dose of 0.75 mg. The package contains two tablets.

Analogues of Postinor

The emergency contraceptive drug Escapelle contains the same hormone as Postinor. The main difference between these drugs is that in Postinor the hormone dose is divided into two doses, while in Escapelle the entire dose is included in one dose. Both drugs are equally effective.

How does Postinor work?

If sexual intercourse occurs in the first half of the menstrual cycle, then Postinor prevents ovulation (the release of an egg from the ovary), which makes conception impossible. If unprotected sex occurs after ovulation has occurred, then Postinor changes the structure of the uterine mucosa so that the fertilized egg cannot implant in the uterus.

It is important to understand that Postinor tablets are not a means of abortion. This medicine may prevent pregnancy, but it is not effective if you are already pregnant.

How effective is Postinor?

The effectiveness of Postinor depends on how soon it was taken after sexual intercourse. In the first 24 hours after unprotected sex, Postinor will work in 95% of cases, if 24 to 48 hours have passed after sexual intercourse, then its effectiveness will be 85%, and if a woman drinks Postinor 48-72 hours after sex, then it will avoid pregnancy in 58% of cases.

Postinor is not effective if more than 72 hours (more than 3 days) have passed after sexual intercourse. Also, Postinor is not effective if pregnancy has already occurred.

Should I drink Postinor?

Before taking Postinor, you should know in what cases its use is really justified. You can take Postinor if in the previous 72 hours:

you have had unprotected sexual intercourse (with or without ejaculation into the vagina);

torn or slipped during sexual intercourse;

you skipped it birth control pill and you had unprotected sex.

Do not take Postinor if:

sexual intercourse took place more than 3 days ago;

Unbearable pain in the lower abdomen;

Repeated vomiting.

Vomiting after taking Postinor

Taking Postinor may cause vomiting. If you vomited in the first 3 hours after taking the Postinor tablet, the effect of the drug may be reduced. Check with your doctor to determine if you need to take the drug again.

Delay after taking Postinor

After taking Postinor, your period may be delayed by 5-7 days. This happens especially often if the drug was taken in the first half of the menstrual cycle.

Menstruation after Postinor

After taking Postinor, the nature of menstruation may change. The periods following the use of Postinor may be heavier than usual. See your doctor if your periods are excessively heavy or if they last more than 7 days in a row. You may need treatment to stop the bleeding.

If, after taking Postinor, your periods become more scanty, or if brown discharge appears instead of periods, it is recommended to do or take a test.

How often can you take Postinor?

The use of Postinor several times in one cycle is acceptable, but only after consultation with a gynecologist.

Frequent use of Postinor increases the risk of menstrual irregularities and uterine bleeding.

What to do if pregnancy occurs despite taking Postinor?

If pregnancy does occur, you should immediately consult a doctor. Postinor may increase your risk, which may require careful evaluation.

Postinor does not have a negative effect on the embryo, so a normal pregnancy can be preserved.

Will I be able to get pregnant after taking Postinor?

A single dose of Postinor, as a rule, does not cause any long-term consequences and does not affect a woman’s ability to become pregnant and give birth to a child in the future.

However, the ability to conceive may be reduced in the first few months after taking Postinor, which is associated with temporary hormonal disturbances.

Unprotected intercourse does not always lead to pregnancy. But in order not to push your luck, modern pharmaceuticals offer hormonal drugs for postcoital contraception. One of the oldest representatives of the group is Postinor. It continues to be sold in pharmacies, although safer analogues have now been developed. But if used correctly, you can use this tool.

What is post-natal contraception

The effectiveness of trying to prevent pregnancy depends on the day of your menstrual cycle and when you start treatment. In women with a normal cycle, conception has a short period of 12 hours - the time when the egg leaves the follicle and moves through the fallopian tubes. If during this time there is no meeting with a sperm, then an embryo will not form.

For this it is necessary to adhere to a clear time frame. The age of the embryo should not exceed 3-5 days. Only at this time does the endometrium have the properties necessary for implantation. Therefore, in natural conditions, the number of pregnancies that successfully progress after conception is only 30%.

High risk of pregnancy during sexual intercourse that occurred three days or less before ovulation. Sex one day after the release of the egg cannot lead to pregnancy.

Therefore, before you decide to take hormonal drugs, it is necessary to assess the risk of becoming pregnant. If a woman knows exactly the time of ovulation (), the duration of her cycle, then this is as simple as possible. A day or two after the follicle bursts, unprotected sex will not lead to pregnancy. Therefore, there is no need to take hormones that can disrupt the menstrual cycle.

Emergency contraception is used within 1-3 days after sexual intercourse. The sooner this is done, the higher the effectiveness of Postinor and other drugs.

Composition and mechanism of action

The drug contains levonorgestrel. This is a synthetic progestogen that is part of. It also has an antiestrogenic effect.

How does Postinor work?

It inhibits the gonadotropic function of the pituitary gland. Under its influence, the concentration of gonadotropins - luteinizing and follicle-stimulating hormones - decreases. Therefore, if ovulation has not yet occurred, it will slow down.

Levonorgestrel affects the endometrium, changes its properties, which prevents the implantation of an already fertilized egg. It also increases the viscosity of cervical mucus, which makes it difficult for sperm to penetrate the fallopian tubes.

The active substance is rapidly absorbed when taken orally, its bioavailability is almost 100%. Maximum serum concentration is reached after 1.6 hours. The half-life is 26 hours. Levonorgestrel is excreted in equal proportions by the kidneys and through the intestines.

Indications and contraindications

Women take birth control pills Postinor after sexual intercourse without using a means of birth control. It can also be used if there is no complete confidence in the effectiveness of the main product:

• condom slipping into the genital tract;
• violation of the integrity of the condom, the female diaphragm;
• skipping one or more tablets oral contraceptive;
• loss or spontaneous removal of the intrauterine device;
• incorrect calculation of ovulation days when using the calendar method;
• unsuccessful interrupted sexual intercourse.

The drug acts on the implantation mechanism, so take Postinor to terminate pregnancy at early stages doesn't make sense.

Contraindications include the following conditions:

1. Individual intolerance or hypersensitivity to the components of the drug. If once after taking the pills there were signs of an allergic reaction, repeated use will be accompanied by a similar reaction or even more pronounced.
2. Age up to 18 years. begins on average at 12-14 years of age and continues for 4-5 years. Any intervention can lead to serious cycle disruptions, which may take several years to recover.
3. Severe liver failure is accompanied by metabolic disorders. Most hormones, including levonorgestrel, pass through the liver. If organ function is insufficient, excessive accumulation and increased side effects may occur.
4. Pregnancy is also a contraindication. Postinor will not cause miscarriage, but its effects on the developing fetus have not been well studied. There is always a risk of disruption of the formation of internal organs.
5. Lactose intolerance, lactase deficiency, glucose-galactose malabsorption may worsen when using Postinor, since it contains lactose monohydrate and corn and potato starch.

You should drink Postinor with caution if you have Crohn's disease, inflammatory diseases of the liver and biliary tract, or cholelithiasis.

In women over 35 years of age, the chance of developing thrombosis increases. The risk increases with blood clotting disorders and smoking a large number of cigarettes per day. The presence of migraine indicates a tendency to thrombosis. Therefore, in this case, you should also take the drug with caution.

Combination with other drugs and alcohol

Some medicines Due to the peculiarities of metabolism, it is not recommended to combine it with Postinor. These include:

• proton pump inhibitors: Lansoprozole, Omeprazole;
• reverse transcriptase inhibitor: Nevirapine;
• antiretroviral: Ritonavir;
• antiepileptic drugs: Oxcarbazepine, Carbamazepine, Primidone, Phenytoin;
• immunosuppressants: Tacrolimus;
• antibiotics: Rifampicin, Ampicillin, Tetracycline, Rifabutin, Griseofulvin;
• retinoids: Tretinoin.

Levonorgestrel reduces the effectiveness of hypoglycemic drugs and worsens the use of anticoagulants of coumarin derivatives, Phenindione. Plasma concentrations of glucocorticosteroids may increase.

The simultaneous use of Levonorgestrel and Cyclosporine suppresses the mechanism of metabolism of the latter. It is an immunosuppressant prescribed for internal organ and bone marrow transplants. Failure to neutralize the drug leads to its accumulation in the liver and the appearance or intensification of adverse reactions.

Treatment with drugs based on St. John's wort, including those prepared at home, is also a contraindication.

The compatibility of Postinor and alcohol is controversial. Ethanol is metabolized through the liver. There are several pathways for oxidation and excretion ethyl alcohol from the body. In some cases, they coincide with those for hormonal agents. Competition for transport proteins can lead to impaired metabolism of either alcohol or drugs.

Undesirable effects

Side effects from Postinor vary from person to person. The most common adverse events are:

1. Damage to the digestive tract: pain in the lower abdomen, nausea, vomiting, digestive disorders, and in some cases, diarrhea.
2. Pathology of the mammary glands: pain appears on palpation of the breast.
3. Reproductive system: menstrual irregularities, bleeding after administration that is not associated with the normal menstrual cycle. The delay after Postinor can be up to 7 days or more. The duration of the menstrual cycle disruption varies. Menstruation can start earlier or later than due.
4. Defeat nervous system manifests itself in the form of increased fatigue, frequent headaches, and dizziness. The appearance of this side effect is associated with the effect of Postinor on the coagulation system and an increase in blood viscosity.

Most side effects go away on their own within a few days. If they are delayed for a longer period, it is necessary to consult a doctor and also exclude pregnancy.

Menstruation after Postinor must be calculated based on previous data on the duration of the cycle and the time of onset of menstrual bleeding. If there is a delay of more than 5-7 days, you must consult a doctor. In this case, there is a high probability that the drug did not work and the pregnancy continued.

The appearance of brown discharge may be an indicator of the onset of normal menstruation or a side effect in the form of cycle disruption.

If after taking the drug there are no periods, but the pregnancy test is negative, in this case it can be assumed that the luteal phase of the cycle is insufficient. Under the influence of a large dose of levonorgestrel, profound depression of pituitary function could occur. Therefore, the lack of luteinizing and follicle-stimulating hormones affects ovulation: it is delayed indefinitely. To confirm the diagnosis, a hormonal profile examination is used: blood is donated for the main sex hormones. It is recommended for such women to be carried out to determine the onset or impossibility of ovulation.

A positive test after taking the medicine indicates pregnancy. This means that Postinor was taken incorrectly or untimely.

The consequences of contraception with Postinor may be long-term. Some women complain of missing periods or irregular cycles for several years.

Combination with pregnancy and lactation

Postinor is not designed to terminate pregnancy; it is not a medication for medical abortion. But it is impossible to call it completely safe for pregnant women: it is impossible to evaluate the effect on the developing fetus experimentally. There is also no data on such experiments on animals.

It is not known whether Postinor is harmful to the developing fetus. But in cases of pregnancy occurring while taking the drug, the preservation of the fetus did not result in the detection of severe vascular pathology or the occurrence of deformities incompatible with life.

The active substance is found unchanged in the blood, it can penetrate into breast milk. A newborn does not need the action of hormones that affect the immature pituitary gland. Therefore, if there is a need for emergency contraception during breastfeeding, after taking the pills, you must refrain from feeding for at least 1 day.

How to take Postinor

The first condition for successful use of the pills is no more than 72 hours after sexual intercourse, which occurred without contraception. The package contains two tablets. The first is taken as early as possible, and the second 12 hours after it. The maximum gap between taking two tablets is 16 hours.

An adverse reaction in the form of vomiting that appears within 3 hours after taking 1 or 2 tablets becomes the basis for taking an additional tablet.

Use Postinor on any day of the menstrual cycle. If menstruation occurs regularly, then there is no possibility of a short-term pregnancy. If it is necessary to exclude the existence of pregnancy using a rapid test.

The drug cannot be taken again during one menstrual cycle. This leads to the appearance of spotting and acyclic uterine bleeding.

How often can Postinor be used?

Peculiarities

The effectiveness of contraception with levonorgestrel depends on the time when the first pill was taken. The sooner after sexual intercourse this is done, the higher the likelihood of a successful outcome. For example, if you use it during the first day after unprotected sex, in 95% of cases or more the promised effect occurs. When using the first tablet during the second day, the effectiveness decreases to 85%, and on the third day it is only 58%.

After using the drug, it is necessary to mark the date of unprotected sex and the day of administration in the women's calendar. From this time, a countdown is taken for the appearance of possible signs of pregnancy or its successful prevention.

How to understand that Postinor has worked?

Menstruation should begin on time according to the calendar. Its duration and volume of blood loss should not differ significantly from normal days.

You should consult a doctor in the following cases:

• heavy periods;
• scanty discharge;
• delay more than 7 days;
• combination of discharge with pain in the lower abdomen.

Painful sensations can be cramping, but more often aching in nature. Sometimes this condition is accompanied by weakness and dizziness. If acute abdominal pain occurs, urgent hospitalization is necessary. This is how it usually manifests itself. An interrupted pregnancy due to a ruptured tube is characterized by the appearance of acute abdominal pain and signs of internal bleeding (low blood pressure, tachycardia).

The effectiveness of a drug can be affected not only by other drugs, but also by pathological conditions. Crohn's disease, when it spreads to the upper intestines, leads to malabsorption useful substances. Therefore, with this pathology, as well as other inflammatory diseases of the digestive tract, absorption may be impaired and, as a result, contraception may not be effective enough.

It should also be remembered that hormonal drugs do not protect against sexually transmitted diseases. To protect yourself from infection, you must use a condom correctly. If sexual intercourse carries the risk of not only an unwanted pregnancy, but also the development of an infection, emergency protective measures should be used. To do this, the woman must urinate and treat the urethral opening with an antiseptic solution: Chlorhexidine, Miramistin. In some cases, preventive antibiotics are effective.

As sad as it is to write about this, Postinor in Russia ranks second among contraceptive methods. The first one, as you know, is . And yet, many women, despite the large selection of contraceptives, use postinor to prevent unwanted pregnancy, forgetting or not knowing about the complications, and what danger harmless 2 tablets pose in the future.

Meet Postinor

Postinor is available in a package containing only 2 tablets (only the number of tablets should suggest that this is not a drug for regular use). One tablet contains 750 mcg of levonorgestrel, which has an emergency contraceptive effect. Levonorgestrel has antiestrogenic and progestogenic properties.

Postinor refers to emergency or fire contraception, and should be used only in exceptional cases, and not constantly and regularly.

How does postinor work?

The contraceptive effect of the drug consists of three points. Firstly, levonorgestrel prevents the release of the egg from the follicle, that is, it inhibits ovulation (this is especially important in the preovulatory and ovulatory phases). Secondly, levonorgestrel, as a gestagen, changes the structure of the uterine mucosa and causes “glandular regression” of the endometrium, which makes it impossible for a fertilized egg to penetrate the uterine wall (impaired implantation). This mechanism is comparable to, that is, conception has already occurred, but the uterus expels the egg. And thirdly, levonorgestrel causes changes in the mucus in the cervical canal, making it viscous and thick. This mucus acts as a barrier and makes it difficult for sperm to penetrate into the uterine cavity.

From the described mechanisms of action of postinor, it becomes clear that the effectiveness of the drug is directly proportional to the time it is taken after unprotected sex. After using postinor 24 hours or less after sexual intercourse, it will protect against unwanted pregnancy in 95% of cases; when taking tablets after 25 to 48 hours, the effectiveness is 85%, and if postinor was taken between 49 and 72 hours, its reliability decreases up to 58%.

Rules for taking postinor

Postinor can be taken on any day of the menstrual cycle. If a woman has an irregular menstrual cycle, the absence of pregnancy should be confirmed. The first tablet from the blister should be taken no later than 72 hours after coitus. The second dose should be taken exactly 12 hours later (the interval can be increased by 4 hours, that is, no more than 16 hours later).

If a woman vomits within three hours after taking a postinor tablet (regardless of the first or second), she must take an additional tablet. Menstrual-like bleeding (withdrawal bleeding) can occur a few days after taking the drug (on average 3 to 7 days) and about a month later (during the expected period).

Postinor is not a means for regular contraception; if a woman is sexually active, she should consult a doctor and choose the optimal method of birth control. It is believed that you should not use the drug more than once a month, and preferably no more than 4 times a year. In fact, it is better not to resort to postinor at all, but to use it only in an exceptional situation.

When is postinor use justified?

Life is an unpredictable thing and there are situations when it is necessary to prevent pregnancy:

• rape;
• the condom broke;
• unprotected sexual intercourse for various reasons;
• expulsion of the intrauterine device or shift of the vaginal diaphragm;
• a missed dose from a series of combined oral contraceptives.

Consequences after using postinor

Since the drug contains an “elephant” dose of the hormone, its use can adversely affect a woman’s health. Firstly, there is a high probability of uterine bleeding, which can only be stopped surgically (that is, curettage of the uterus). Secondly, taking postinor, especially more than once in a lifetime, causes a blow to the ovaries, which leads to menstrual irregularities, hormonal imbalance and anovulation. All of these effects are a direct path to infertility. Thirdly, a large dose of levonorgestrel cannot but cause side effects:

• nausea and vomiting, diarrhea;
• headache, dizziness;
• mood changes (emotional lability, panic fears);
• delay of menstruation;
• allergic reactions;
• pain in the lower abdomen, fatigue;
• pain and engorgement of the mammary glands.

The choice of the majority of Russian women, if they need to use emergency contraception as a result of unsafe sexual intercourse, most often falls on the drug Postinor, the active fraction of which is levonorgestrel.

Medicines of this pharmacological group help induce medicinal abortion at the initial stage of gestation by creating obstacles to embryo implantation. We will talk about how often you can drink Postinor in this article.

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• Conclusion

How often can you take Postinor?

How many times can you take Postinor? Hypothetically, you can use this type of contraception 12 times in a year.

However, do not forget that the drug is intended only for extreme cases, and one tablet contains a loading dose of the hormone. The risk of disruption of the regularity of the cycle increases, and dysfunction of the female reproductive glands may develop.

The use of this medication as a regular contraceptive is unacceptable and is fraught with consequences. You need to take two tablets, each containing 0.75 mg of levonorgestrel.

Such a significant dose of synthetic gestagen, used on an ongoing basis, cannot but affect the functioning of the woman’s reproductive system. Whereas modern combined oral contraceptives are presented in gentle microdoses. This is why you should not drink Postinor twice a month.

What happens if you take Postinor often? With repeated use of Postinor, its side effects increase.

The greatest danger is represented by acyclic bleeding, characterized by disruptions of the menstrual cycle and delayed onset of menstrual bleeding. There is a risk of developing uterine bleeding, in which case it is necessary to seek qualified gynecological help.

Thus, to the question: “How many times can you take Postinor?”, the answer is - do not abuse it. Next, let's talk about whether it is possible to drink Postinor after an abortion?

Watch a useful video about the drug Pastinor:

Postinor after medical abortion

It is highly undesirable to use Postinor after an abortion, even after a medical abortion.

Medical abortions are carried out using synthetic antigestagens (for example, Mifepristone).

When used together, they exacerbate each other's negative actions. We are talking about bloody discharge from the female genital tract and menstrual irregularities. The most serious complication from the effects of such combinations of medications is profuse uterine bleeding, which requires urgent hospitalization.

After medicinal termination of pregnancy, at least two regular restored menstrual cycles must pass, and only then can you resort to the help of Postinor during unprotected sexual intercourse.

What happens if you take the drug often?

Let's get back to how often can you use Postinor? The consequences of taking Postinor can pose a threat to a woman’s health. Side effects of this medication include bleeding different types. This phenomenon is associated with the high level of the hormone levonorgestrel in the tablet, which affects the endometrium of the uterus, thickening it.

Frequent use of Postinor is complicated by bleeding, especially when taken repeatedly over a short period of time, more than once in one cycle.

On the other hand, Postinor can cause a diametrically opposite effect in the form of aminorrhea, that is, the absence of menstruation.

In this case, it is necessary to contact a gynecologist in order to exclude gestation. In addition to bleeding, abuse of the drug can lead to the development of less dangerous, but not more pleasant complications, such as vomiting, nausea, apathy, headache. If vomiting occurs three hours after the first or second tablet, then you need to take another Postinor tablet.

Conclusion

Postinor is applicable only for the purpose of “fire” contraception, and is recommended for women with a regular cycle without failures or delays.

Gynecologists do not encourage the abuse of this medication, as it has a detrimental effect on the condition of the body.

Is it possible to take Postinor 2 times a month? No you can not. How many times a month can you take Postinor? No more than once per cycle.

Postinor tablets should be taken with caution, only in cases of urgent need after unprotected intercourse, only once during one menstrual cycle.

The product cannot become an analogue of a permanent method of contraception, as it causes a number of side effects that can be harmful to health.

Medical termination of pregnancy and taking Postinor should not be combined due to the increased risk of dangerous complications.

We hope that our article will be useful to you and you will firmly remember how often you can use Postinor, how many times a year you can take Postinor and can you take Postinor after a medical termination of pregnancy?

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Postinor tablets: instructions for use, analogues

Postinor is a synthetic contraceptive drug intended to prevent unwanted pregnancy. This medicine belongs to the group of hormonal emergency contraception and is used after unprotected sexual intercourse (within 72 hours). Postinor tablets can prevent pregnancy in 85% of cases.

The drug is not intended for use on an ongoing basis; its use requires prior consultation with a gynecologist, since the contraceptive can cause serious adverse reactions. Let's take a closer look at how Postinor works, what the consequences of taking it are, what effect it has on a woman's body and how to use it correctly.

Postinor tablets - the effect of the drug

Postinor is a postcoital contraceptive intended for oral administration. The basis of the drug is the artificial hormone levonorgestrel, which has a pronounced antiestrogenic and gestogenic effect. The mechanism of this action consists of three components:

1. The active substance of the drug delays and blocks ovulation, preventing the mature egg from leaving the ovary in fallopian tube, which prevents its fertilization.
2. Taking Postinor helps change the composition of cervical mucus; it becomes thicker, preventing sperm from penetrating the uterus and fertilizing the egg.
3. If ovulation does occur, the drug prevents the penetration of a fertilized egg into the uterine cavity, that is, in fact, it has an abortifacient effect.

In the case when implantation of a fertilized egg has already occurred, the drug is ineffective.

Contraceptive Postinor is recommended to be taken as soon as possible after sexual intercourse, since the more time passes between contact and taking the contraceptive, the lower the effectiveness of the drug will be. Answering the question whether it is possible to get pregnant after Postinor, doctors cite the following facts: if a contraceptive is used in the first day after sexual intercourse, then unwanted pregnancy can be avoided in 95% of cases.

If the drug is taken for 48 hours, its effectiveness is 85%; when used within 72 hours, successful prevention of pregnancy is observed in 58% of cases.

When taken orally, the drug is completely and quickly absorbed, the maximum concentration of the active substance in plasma is reached after 1.6 hours. Then the concentration of levonorgestrel begins to gradually decrease, the half-life of the drug is about 26 hours.

The bioavailability of the drug is absolute, that is, almost 100% of the dose taken enters the bloodstream. The active substance is biotransformed in the liver and excreted from the body in the form of metabolites equally through the kidneys and intestines.

Release form and analogues

Postinor is produced in the form of tablets for oral administration. Disc-shaped tablets white have a chamfer and a circular engraving “INOR” on one side. 1 tablet of Postinor contains 0.75 mg of levonorgestrel + excipients.

Such a high dose of artificial hormone determines the effectiveness of Postinor. For comparison, low-dose oral contraceptives contain the same amount of levonorgestrel in 20 tablets. The drug is stored in a dry place, out of reach of children, at temperatures up to 25°C. Shelf life - 5 years.

The package with the drug contains 2 Postinor tablets, they are taken at intervals of 12 hours during the first three days after unprotected sexual intercourse.

Postinor has several analogues of the active substance, which are no less effective in preventing unwanted pregnancy. The most popular of them are:

• Escapelle
• Eskinor-F
• Norplant
• Gynepristone
• Microlute

Which remedy should be preferred should be decided together with a gynecologist. All of these remedies are effective, but have quite serious side effects. Only a specialist can choose the most optimal option for a woman, taking into account possible contraindications and the woman’s general health. To avoid possible complications It is not recommended to use Postinor or its analogues on your own.

How much does Postinor cost?

In pharmacies average price for a package of Postinor containing 2 tablets is 320 rubles. The cost of the drug is quite reasonable, given the fact that the contraceptive is not intended for systematic use, but is used only in emergency cases.

Indications

Oral contraceptives are used only in extreme cases; they should not be used systematically, as this may lead to the development of unwanted complications. Women should remember that the drug is not always able to prevent pregnancy, since its effect is most effective during the first 24 hours after contact.

Instructions for use

Instructions for use of Postinor require taking two tablets within the first 72 hours after unprotected contact. First, take one tablet, then, after 12 hours, take the second. In order to achieve the desired effect, the drug must be taken as soon as possible after sexual intercourse.

If vomiting occurs within three hours after taking the first or second tablet, you need to take another contraceptive tablet. The drug can be taken on any day of menstruation, it is desirable that the woman has a regular menstrual cycle. Repeated use of the medication during one cycle is not recommended, since spotting is observed after Postinor, and uterine bleeding may occur with frequent use of the drug.

After using emergency contraception and until the next menstruation, a woman should be protected with local contraceptives (cervical cap, condom).

A woman must remember that postinor contraceptives should not be taken frequently; uncontrolled use can cause serious complications in the future and even lead to ectopic pregnancy. The drug contains a “killer” dose of the hormone levonorgestrel, which can provoke profuse uterine bleeding.

A common occurrence when taking Postinor is delayed menstruation and disruption of the menstrual cycle. Therefore, to the question of women: “How long after your period after Postinor? “It can be difficult for specialists to give an exact answer. In some cases, a delay may indicate contraceptive abuse or be the result of an unplanned pregnancy.

Late use of Postinor does not guarantee the prevention of fertilization, therefore, in case of any delays in menstruation, you should consult a specialist to exclude pregnancy.

Young girls often face the problem of irregular menstrual cycles and ask gynecologists whether it is possible to take Postinor if their periods are delayed. The hormonal component of the drug can help in such a situation, and girls note that after Postinor their periods began and the cycle stabilized. But you can use a contraceptive for these purposes only after consultation with a specialist; in no case should you take the drug systematically.

Contraindications

Postinor is contraindicated for use in the following conditions:

The drug is prescribed with extreme caution to patients with diseases of the biliary tract and liver. The doctor should not prescribe contraception for severe jaundice or Crohn's disease.

If when using emergency method However, if contraception does not result in pregnancy, studies confirm that taking the drug does not have a negative effect on the development and formation of the fetus.

During lactation, you should refrain from taking the contraceptive Postinor, since the active substance can penetrate into mother's milk. If an unforeseen situation arises and there is a need for urgent use of Postinor, doctors recommend doing the following.

Before starting to take the drug, the young mother is asked to feed the baby, then express breast milk and take 2 contraceptive tablets at once. It is not recommended to breastfeed your baby over the next 24 hours; you can use expressed milk or baby food for feeding. After a day you can return to breastfeeding.

Side effects

When taking Postinor, in some cases, transient side reactions occur that do not require drug therapy. Women report the following symptoms:

• Headache, dizziness
• Vomiting, nausea, diarrhea
• Soreness and engorgement of the mammary glands
• Delayed menstruation (up to 7 days)

If the arrival of menstruation is delayed for a longer period, you need to contact a gynecologist in order to exclude pregnancy.

In addition to these side effects, patients often note that in response to taking the drug there is lethargy, a feeling of fatigue, and pain in the lower abdomen may appear. The most dangerous consequence of taking Postinor may be the development of bleeding. This is due to the action of an active hormone, which helps to increase the level of gestogen, which is responsible for the condition of the endometrium of the uterus.

Bleeding can also develop as a result of improper use of Postinor, when a high dose of the drug is taken for a short time. An overdose can provoke uterine bleeding. In such cases, emergency medical attention will be required.

Frequent use of the drug is extremely undesirable; experts warn that systematic use of Postinor increases the risk of developing ovarian dysfunction and can ultimately lead to infertility. It is advisable to use emergency contraception no more than once every three months.

Drug interactions

Simultaneous use with some medicines can significantly reduce the effectiveness of Postinor. Therefore, it is not recommended to take it together with antibacterial and antifungal agents, drugs containing St. John's wort, tacrolimus, lansoprazole, tretinoin and other drugs, the list of which is indicated in the instructions for the contraceptive.

Women taking anticoagulants and hypoglycemic drugs should remember that Postinor reduces the therapeutic effect of these drugs.

special instructions

To avoid unwanted side effects and complications, you can take Postinor contraceptives only as prescribed by your doctor. The drug is recommended for use in women with a regular monthly cycle. In most cases, Postinor does not affect the nature of the cycle, but sometimes its use can delay menstruation for several days or cause bleeding that is not associated with the menstrual cycle.

When used repeatedly during one menstrual cycle, the medication can cause various disorders (delayed menstruation, uterine bleeding). The appearance of fainting or severe pain in the lower abdomen may indicate the onset of an ectopic pregnancy. This condition requires hospitalization and surgery.

It is prohibited to use Postinor as a means of continuous contraception. The drug contains an artificial hormone in high doses, so regular use can lead to the development of severe adverse reactions and complications, including infertility.

Postinor does not replace regular contraception; it is used only in cases where other methods of preventing unwanted pregnancy fail (violation of the integrity of the condom, failure to take regular oral contraceptives).

In case of development of uterine bleeding caused by taking the drug, you should be examined by a gynecologist. The contraceptive is not able to terminate a developing pregnancy. If conception occurs while taking the drug, then there is no need to panic, since there is no risk of a negative impact on the developing fetus from Postinor. It should be remembered that the use of emergency contraception cannot protect against sexually transmitted diseases.

The instructions for use of the drug warn that the effectiveness of Postinor may be significantly reduced in case of gastrointestinal diseases. For pathologies of the liver and biliary tract, the drug is prescribed with caution, and the doctor must monitor the general condition of the patient.

After using the drug, you should visit a gynecologist, undergo an examination and decide on subsequent methods of regular contraception. The doctor will help you choose the most optimal option, taking into account possible contraindications and concomitant diseases.

Postinor does not affect the ability to drive vehicles or perform work that requires concentration and high reaction speed. Reviews from women about the drug are mostly positive, but some of them indicate that the use of an “emergency” contraceptive can provoke hormonal disbalance and have a negative impact on reproductive function.

Reviews about the use of contraceptives Postinor

Review #1

I took Postinor once in my life, and the experience was negative. It all happened when I was young, at that time I was dating a guy. Of course, we protected ourselves, but there were also unprotected contacts. And after one such incident, I counted the days and realized that I was in a dangerous period, and I could easily get pregnant. This was in no way part of my plans.

At that time, I was studying at the university, preparing to defend my diploma, and making plans for further employment and career growth. My friend often used Postinor, and I also decided to take a contraceptive. I bought it at the pharmacy without a prescription, it was not cheap at all, there were only 2 tablets in the package. In the morning I drank Postinor according to the instructions and went to the university. Soon I felt bad, felt very weak, nauseated, and started vomiting.

I was turning inside out, nothing but bile was coming from my stomach, my eyes were dark. I barely made it home and took two days to come to my senses. In fact, I never took the second pill. It’s good that everything worked out and there was no pregnancy. But I no longer risked taking this drug; I use other means of contraception.

Irina, Chelyabinsk

Review #2

Postinor had to be taken several times in emergency situations. Being married, we protected ourselves using a barrier method, that is, using a condom. Well, several times the product failed (broke), I had to play it safe and take Postinor. I didn’t have any adverse reactions to this drug, otherwise I had read horror stories on the Internet from other women about vomiting and bleeding.

Everything went smoothly for me, although after taking birth control pills my cycle shifted for several days, and my period came a little later. And I also noticed that they became longer and more painful. Otherwise, the drug always helped, no unwanted pregnancy occurred.

Lenara, Moscow

Review #3

I have already had experience taking Postinor in the past. In my youth I drank it several times in emergency situations. Everything was fine then side effects did not have. Now I am 38 years old, two children. Recently I had to remove the IUD; I protected myself with a condom, but a situation arose that a contraceptive was not available at the right time.

I decided to play it safe and the next day I bought Postinor and took it according to the instructions. A few days later, I took a pregnancy test and it was positive. I went to see a gynecologist and had an ultrasound - the result was negative. I chalked it all up to a poor quality test. But I began to notice that something was wrong with me, I noticed engorgement and tenderness of the mammary glands, and constantly felt nagging pain in my stomach.

After some time, I felt unwell, sharp pains appeared, and began to lose consciousness. They took her to the hospital and diagnosed her with an ectopic pregnancy. There was an operation, the fallopian tube was removed, and then postoperative problems plagued me for a long time. I think that the cause of this condition was Postinor. From now on I will avoid using such drugs.

Larisa, Kislovodsk

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Postinor: clear instructions for use | My Gynecologist

Postinor is an emergency contraceptive that helps prevent unwanted pregnancy if sexual intercourse has already taken place.

ATTENTION: The drug has contraindications. Do not start using this drug without first consulting your doctor.

Composition of tablets and packaging

One Postinor tablet contains the hormone levonorgestrel in a dose of 0.75 mg. The package contains two tablets.

Analogues of Postinor

The emergency contraceptive drug Escapelle contains the same hormone as Postinor. The main difference between these drugs is that in Postinor the hormone dose is divided into two doses, while in Escapelle the entire dose is included in one dose. Both drugs are equally effective.

How does Postinor work?

If sexual intercourse occurs in the first half of the menstrual cycle, then Postinor prevents ovulation (the release of an egg from the ovary), which makes conception impossible. If unprotected sex occurs after ovulation has occurred, then Postinor changes the structure of the uterine mucosa so that the fertilized egg cannot implant in the uterus.

It is important to understand that Postinor tablets are not a means of abortion. This medicine may prevent pregnancy, but it is not effective if you are already pregnant.

How effective is Postinor?

The effectiveness of Postinor depends on how soon it was taken after sexual intercourse. In the first 24 hours after unprotected sex, Postinor will work in 95% of cases, if 24 to 48 hours have passed after sexual intercourse, then its effectiveness will be 85%, and if a woman drinks Postinor 48-72 hours after sex, then it will avoid pregnancy in 58% of cases.

Postinor is not effective if more than 72 hours (more than 3 days) have passed after sexual intercourse. Also, Postinor is not effective if pregnancy has already occurred.

Should I drink Postinor?

Before taking Postinor, you should know in what cases its use is really justified. You can take Postinor if in the previous 72 hours:

you have had unprotected sexual intercourse (with or without ejaculation into the vagina);

the condom broke or slipped off during intercourse;

you missed your birth control pill and had unprotected sex.

Do not take Postinor if:

sexual intercourse took place more than 3 days ago;

you are already pregnant (a pregnancy test showed a positive result);

sexual intercourse has not yet taken place, but is planned.

Contraindications for taking Postinor

if you have had an allergy to Postinor or Escapelle in the past;

with severe liver dysfunction and gallbladder diseases;

during pregnancy;

Rules for using Postinor

Take the first Postinor tablet as soon as possible after sexual intercourse. The second tablet should be taken 12-16 hours after the first. If the second tablet is taken later than 16 hours after the first, the effectiveness of the drug may be reduced.

Possible side effects of Postinor

After taking Postinor, some side effects. The following side effects of Postinor are not dangerous and do not require urgent medical attention:

Slight bloody (brown) discharge;

Nausea, single vomiting;

• Breast swelling and tenderness;

  Mild pain in the lower abdomen (as during menstruation);

  Headache, fatigue.

Contact your doctor if you experience the following symptoms after taking Postinor:

Shortness of breath, difficulty breathing;

Skin rashes that itch;

Swelling of the face;

Severe uterine bleeding (more abundant than menstruation);

Unbearable pain in the lower abdomen;

Repeated vomiting.

Vomiting after taking Postinor

Taking Postinor may cause vomiting. If you vomited in the first 3 hours after taking the Postinor tablet, the effect of the drug may be reduced. Check with your doctor to determine if you need to take the drug again.

Delay after taking Postinor

After taking Postinor, your period may be delayed by 5-7 days. This happens especially often if the drug was taken in the first half of the menstrual cycle.

If there is a delay of 7 days or more, it is recommended to take a pregnancy test and consult a gynecologist. For other possible reasons for a delay, read the article 10 reasons for a delay in menstruation.

Menstruation after Postinor

After taking Postinor, the nature of menstruation may change. The periods following the use of Postinor may be heavier than usual. See your doctor if your periods are excessively heavy or if they last more than 7 days in a row. You may need treatment to stop the bleeding.

If after taking Postinor your periods become more scanty, or if brown discharge appears instead of periods, it is recommended to take a pregnancy test or take a blood test for hCG.

How often can you take Postinor?

The use of Postinor several times in one cycle is acceptable, but only after consultation with a gynecologist.

Frequent use of Postinor increases the risk of menstrual irregularities and uterine bleeding.

What to do if pregnancy occurs despite taking Postinor?

If pregnancy does occur, you should immediately consult a doctor. Postinor may increase the risk of ectopic pregnancy, which may require careful evaluation.

Postinor does not have a negative effect on the embryo, so a normal pregnancy can be preserved.

Will I be able to get pregnant after taking Postinor?

A single dose of Postinor, as a rule, does not cause any long-term consequences and does not affect a woman’s ability to become pregnant and give birth to a child in the future.

However, the ability to conceive may be reduced in the first few months after taking Postinor, which is associated with temporary hormonal disturbances.

www.mygynecologist.ru

Postinor - use very carefully!

Postinor is an emergency contraceptive that can be used after unprotected sex or if another method of protection against pregnancy has not worked. This type of contraception is sometimes also called “morning after.” Each postinor package contains two round white tablets. Each of them contains 750 micrograms of levonorgestrel, which is the active component of this drug.

Operating principle

According to experts, progesterone prevents pregnancy in 85% of cases, that is, it is not an absolutely reliable means of protection.

It is believed that the active component of postinor prevents the egg from leaving the ovary, or, if it has already been released, prevents the sperm from fertilizing the egg. If fertilization has already occurred, levorgestrel will prevent the fertilized egg from implanting into the walls of the uterus.

If implantation of the embryo has already occurred, postinor will not help - it can only prevent the onset of pregnancy, but not terminate it.

Therefore, it is recommended to take the first postinor tablet within seventy-two hours after unprotected sexual intercourse. The less time has passed, the more effectively the medication works. The second tablet should be taken 12 hours (and no more than 16 hours) after the first.

Some experts today advise taking two tablets at once.

In their opinion, the effectiveness does not change, but it eliminates the possibility that a woman will forget to take the second pill or lose it - which happens quite often.

Contraindications for use

Do not take the drug in the following cases:

• If you are already pregnant or think you may be pregnant
• If you have missed your period or if your previous period was unusual
• You have already had unprotected sex since your last period and more than 72 hours have passed since then
• You know that you are allergic to the components of the medicine

Also, if you have diseases of the small intestine (such as Crohn's disease), severe liver problems, high blood pressure, diabetes, heart disease, stroke or history of breast cancer, consult your doctor before taking the drug.

When the effectiveness of postinor decreases

Postinor may not be effective for those taking barbiturates and other medications used to treat epilepsy (such as primidone, phenytoin, and carbamazepine), medications for tuberculosis (rifampicin, rifabutin), fungal infections (griseofulvin), medications that contain St. John's wort , as well as drugs used to treat HIV-infected people.

If after taking Postinor your periods are unusually weak or, conversely, more intense than usual, consult your gynecologist.

This should also be done if you become pregnant after taking Postinor. Although there is no evidence that postinor has a negative impact on the child's development, you will need to undergo an especially thorough examination.

Postinor cannot be taken continuously

Postinor cannot be used as a means of contraception on a regular basis. If you take it more than once a month, there is a high probability of menstrual irregularities, since the dose of the hormone contained in the tablets is very high. You should also keep in mind that, like other forms of contraception, with the exception of condoms, it cannot protect you from any sexually transmitted diseases.

About one woman in four experiences nausea after taking Postinor. If you vomit within three hours after taking the first or second tablet, you should seek advice from your doctor or pharmacist.

For most women, periods after taking Postinor begin at the expected time, but in some cases they may begin earlier or later than expected. Bleeding may last longer and be heavier than usual.

Sometimes the drug has side effects such as dizziness, pain in the lower abdomen and increased fatigue. These symptoms go away after a few days and usually do not require medical intervention.

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