Postinor is a drug that millions of women use for emergency contraception. Everyone knows that a heavy dose of hormones cannot bring anything good to the body. The harm from taking Postinor has been repeatedly emphasized by gynecologists, but the drug has not lost its popularity over the years. This is due to its availability, relative cheapness and effectiveness.
However, when going to the pharmacy the morning after unprotected sex, you should definitely take into account that after taking Postinor the consequences can be the most tragic. Any woman should know what to be prepared for after taking the drug and whether she can turn to emergency contraception.
How the drug works
The active ingredient in Postinor is the hormone levonorgestrel. One tablet contains 0.75 mg of this hormone, which is a “killer dose” (for comparison: in oral contraceptives for non-emergency use, this amount of levonorgestrel is contained in 20 tablets).
The mechanism of action of Postinor is quite simple. The hormone contained in the drug leads to blocking ovulation. If ovulation has occurred, the drug prevents the passage of a fertilized egg into the uterine cavity, that is, in fact, a mini-abortion occurs in the woman’s body.
One package of the drug contains 2 tablets. How long should you drink them within? The first should be taken a maximum of 72 hours after unprotected sex, the second - 12 hours after the first. This ensures maximum efficiency.
Is it possible to get pregnant after taking Postinor tablets?
Are you and your partner so carried away by each other that you completely forget about birth control? Well, unfortunately, it is impossible to turn back time, and if you are not planning a pregnancy, you should think about using emergency contraception. Most often, the drug Postinor is recommended for this purpose. But how effective is it? Let's see if you can get pregnant after postinor .
First of all, it should be noted that emergency contraception is extremely harmful to women’s health and cannot be used as an alternative to a condom or birth control pills. Therefore, before you swallow the pill, find out whether it is really necessary.
sexual intercourse If intercourse occurs in the first or last week of the menstrual cycle, the likelihood of ovulation, and unwanted ovulation, and therefore pregnancy, is extremely low. If you missed just one birth control pill, you don’t need to worry about the pills either.
If your impulse of passion was unprotected, and it was still the period of ovulation, there was only one way out - emergency It seemed. contraception would be accepted - and order. Postinor will not allow the fertilized egg to implant in the uterus. Rough
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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?
Judging by this effect on the reproductive system, it seems that conception should not occur, but life shows the opposite. Quite often there are cases when you can get pregnant after taking postinor.
The chance of getting pregnant after taking Postinor is small, since the drug was created to prevent fertilization from occurring
But it is not recommended to get carried away with this drug, 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 .
Take the first pill (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;
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.
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:
If its effectiveness decreases due to the use of other medications used, for example, for treatment
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The ideal option for a woman to have a child is a planned pregnancy, which includes an examination of the body of both parents and the desire to give birth to a healthy baby. Unfortunately, we cannot always predict the capabilities of our body.
The number of unwanted pregnancies, as well as, unfortunately, the number of abortions, despite the fact that there are many contraceptives in pharmacies, is growing every day.
What should a woman do if she had unprotected sexual intercourse (for example, a condom broke or you forgot to take a birth control pill)?
In such cases, many women use a drug called Postinor.
It cannot be called a contraceptive in the full sense of the word, since its constant use can lead to very strong side effects, but it is still believed that it comes to the rescue in emergency cases. Many women think with fear: “I took Postinor, is it possible to get pregnant after it?” Let's look at the effect of this drug.
Pharmacological action of “Postinor”
the drug contains levonogestrel, a substance that prevents the release of the egg from the ovary and its fertilization by sperm, as well as the implantation of the fertilized egg into the uterus;
the first tablet must be taken 72 hours after intercourse, the second tablet – 12 hours after taking the first tablet;
After taking the drug Postinor, the probability of becoming pregnant is on average 15%, and if a lot of time has passed between sexual intercourse and taking the drug, then the probability of fertilization will increase (at 24 hours - 5%, from 24 to 48 hours - 15%, from 48 to 72 hours – 42%).
Pregnancy after Postinor
Is it possible to get pregnant after Postinor? Alas, but it is possible. There are a number of reasons that can provoke pregnancy even after taking this pill:
Source: https://pregumladi.ru/post/7715-mojno_li_zaberemenet_posle_priema_tabletok_postinor
Efficacy of the drug
The effect of Postinor is largely determined by how many hours after intercourse it was taken. The effectiveness of the drug is quite high - up to 95% (if the necessary instructions are followed and the first tablet is taken no later than 24 hours after sex). The longer the period of time between unprotected sexual intercourse and taking the first pill, the lower the effectiveness and the greater the risk of pregnancy.
So, if the drug is taken after 48 hours, the probability of its effect is slightly above 50%. However, you should remember that the possibility of becoming pregnant always exists. Even if Postinor is taken in the first 24 hours, it does not provide a 100% guarantee, like any other method of contraception: you can still get pregnant.
If the pills do not work and pregnancy still occurs after Postinor, some women decide to leave the child, and then the question arises about the effect of Postinor on the fetus. Of course, a hormonal shock can also affect the development of the baby, but often pregnancy passes without visible complications. Such a pregnancy will need to be monitored more carefully in order to identify complications or pathologies in time. Practice shows that many babies are born healthy and strong.
Many women are also concerned about another question: is pregnancy possible in the future after taking Postinor? Is it possible to use the drug without fear of developing infertility?
There is no clear answer to these questions. If you use the pills as an emergency aid and do not abuse them, there should be no difficulties with motherhood in the future. Many women manage to get pregnant after Postinor. If a woman transfers the drug to the category of “regular contraception,” problems, of course, cannot be avoided. And not only with pregnancy, but also with the work of the entire body as a whole.
Postinor: consequences
The choice of modern contraceptives is large.
Their actions boil down to two principles. Some need to be taken constantly, others - once and only in emergency cases. Postinor is an emergency drug. The drug reduces the possibility of unplanned pregnancy by 5-10 percent. There is an opinion that postinor is a means of aggressive influence. Indeed, if the drug is used incorrectly, health problems can arise. It cannot be used continuously.
In addition, be sure to read the instructions before use. Postinor has contraindications and side effects. The drug is dispensed in pharmacies with a doctor's prescription.
Therefore, it is better to consult a gynecologist in advance.
Consequences of taking postinor
The consequences of taking postinor may not be dangerous to health if you take it too often. Some doctors recommend using it no more than once every 3 months. Others – no more than once a month. Abuse can lead to menstrual irregularities and hormonal imbalances.
This is due to the active substance of the drug. It contains a concentrated dose of hormones. If no negative consequences of taking are observed, you do not need to consult a doctor. Otherwise, consultation with a gynecologist is required.
Untimely diagnosis and treatment of the consequences of using prostinor can lead to many female diseases.
Pregnancy after postinor
- If you take the pill no later than 72 hours after unprotected intercourse, then pregnancy after postinor is unlikely. In the first 24 hours, its effectiveness reaches 95 percent.
- If conception does occur, the consequences can be negative. There is a possibility of changes in the structure of the uterus, miscarriage and ectopic pregnancy.
- But if the pregnancy continues, there is no need to worry.
Doctors have not identified any danger of prostinor’s effect on the fetus.
Menstruation after postinor: features
Menstruation after postinor can begin in a timely manner. A cycle failure is also possible. It may return to normal after some time. The instructions for the drug say that it can only be used by women with regular periods. To avoid serious consequences after use, you should consult a gynecologist.
Postinor action
There are two tablets in a package of pastinor. First you need to take one, then after some time - another (after 12-16 hours). Some doctors recommend drinking two at once. It often happens that women forget to take the second dose of the drug.
The product works as follows: the active substance levonorgestrel, an artificially created hormone, slows down the movement of the egg to the uterus. If it nevertheless reaches its goal, it does not allow it to attach to the wall. This is due to changes in the surface of the uterus due to the action of the drug.
The effectiveness of the contraceptive depends most on how quickly you take the pill. Don't delay. After 72 hours, the likelihood of getting pregnant will increase.
The effectiveness of postinor may decrease due to taking other medications: for tuberculosis, HIV therapy, epilepsy and fungus.
In addition, a similar result is achieved by combining the drug and medications containing St. John's wort.
Bleeding after postinor
Many people confuse bleeding after postinoration with the onset of menstruation. Actually this is not true. The effect of the contraceptive may cause acyclic discharge.
They look like very scanty menstrual flow. Bleeding may last for 1-2 days. A delay of up to 5 days is considered normal. If the period is longer, you should consult a doctor.
Pregnancy or hormonal imbalance may occur.
Postinor: side effects
Many people, after taking Postinor, feel nausea, pain in the lower abdomen, general malaise and weakness. This does not mean that all women should have this reaction. Side effects may not appear
Before using the drug, you should familiarize yourself with the contraindications. Postinor should not be taken during adolescence. It can greatly affect the natural hormonal background of a girl’s growing body. The drug is contraindicated for people sensitive to the active substance, levonorgestrel, those who have suffered hepatitis, women with liver diseases and thrombosis.
Source: https://LadySpecial.ru/materinstvo/beremennost-i-rodyi/postinor-posledstviya
Side effects
It is known that side effects exist even with the “safest” drugs. Of course, Postinor also has them, which is very difficult to classify as safe. A huge concentration of the hormone in one tablet can lead to serious health problems both immediately after taking it and in the long term.
Side effects after Postinor:
- disruption of intestinal function;
- vomit;
- diarrhea;
- a woman may have a headache;
- Dizziness, lethargy and weakness are possible.
- Many women have stomach pain after postinorax, which is associated with changes in hormonal levels and the onset of bleeding.
If the side effects are not very strong, you do not need to do anything - this is a natural reaction of the body. However, in case of pronounced reactions, you should immediately consult a doctor.
How does postinor affect the body and is it possible to get pregnant later?
Health Medicines Av. Lyudmila Redkina
“Postinor” is currently one of the most popular drugs for preventing unwanted pregnancy.
Among the female half of the population, due to its properties and characteristics of use, it received the name of a remedy that terminates pregnancy “the next morning.”
In developed countries, “Postinor” is not used as a contraceptive; this drug is prescribed only after consultation with a specialist and is sold in pharmacies strictly according to prescription due to the unsafety of its use.
In our country, the drug can be bought freely at any pharmacy if it is available in the range, and if it is not available, you can place an order, and in the shortest possible time it will appear on the pharmacy counter. The drug is used as an emergency prevention of unwanted pregnancy; it is not used for continuous use. But some women found “Postinor” to be used on an ongoing basis as a method of contraception.
The drug “Postinor” – pharmacological properties
The medicine has progestogenic, antiestrogenic and contraceptive properties, therefore, it works in three directions:
blocks the release of an already mature egg from the ovary into the fallopian tubes, as a result of which fertilization by sperm does not occur;
in the case of ovulation and fertilization, it prevents the fertilized egg from implanting into the walls of the uterus by changing the composition of the endometrium, as a result it becomes loose and the egg cannot attach to it;
changes the composition of cervical mucus, as a result of which it becomes viscous, the speed of sperm decreases, they cannot penetrate the uterine cavity, therefore the process of fertilization does not occur.
In what forms is the medicine available?
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Postinor is one of the ways to protect against unwanted pregnancy. However, it should in no way be classified as a contraceptive suitable for frequent use.
This is an emergency method when unprotected sexual intercourse has occurred and there is a risk of pregnancy.
Is it possible to get pregnant after postinortion, have there been such cases and how great is the risk of developing abnormalities in such a child in the future?
How dangerous is postinor?
As a one-time emergency contraceptive, postinor does not pose a great danger to a woman’s body. Of course, it can temporarily cause hormonal imbalance in the body, but as a rule, this goes away.
However, if you use it too often, the risk of deterioration in health increases many times over. It should be remembered that Postinor is not an oral contraceptive that you can take for months and not experience any problems.
This is a stronger medicine.
https://www.youtube.com/watch?v=pianM_aM2VE
Frequent use of this contraceptive may have a negative impact on fertility and women's health in the future. Therefore, choose safer ways to protect yourself from unwanted pregnancy, and resort to the help of postinor only as a last resort.
The principle of operation of postinor
The main active ingredient of the drug is levonorgestrel. One postinor package contains two tablets, each of them contains 750 mcg of levonorgestrel. The first tablet is drunk no later than 72 hours after unprotected intercourse, and the second - 12 hours after the first one was drunk.
Levonorgestrel inhibits the release of the egg from the ovary, therefore, its fertilization by sperm does not occur. That is why it is important to drink Postinor as quickly as possible, while the egg is not yet fertilized.
If a woman is still late in taking the drug and fertilization
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Is it possible to get pregnant after postinor? This question often arises among women and girls who have already taken or are planning to take Postinor.
There are quite a lot of methods of contraception: medications and “grandmother’s” recipes to avoid getting pregnant, and each woman uses her own method. But often Postinor is taken after unprotected sexual intercourse and there are high risks of becoming pregnant. First, let's study the actions of this contraceptive.
Action of Postinor
Postinor contains the active ingredient Levonorgestrel. According to the instructions, Postinor is taken in two doses, one tablet must be taken no later than 72 hours after unprotected sex, and the other - 12 hours after drinking the first one.
Levonorgenstrel prevents the fertilized egg from implanting in the wall of the uterus, in other words, a miscarriage occurs at the minimum stage of pregnancy. That is why it is important to take the first pill as early as possible.
Postinor should not be taken more than 2 times a month, as the effectiveness of the contraceptive decreases, and side effects increase. This contraceptive does not provide a 100% guarantee. It is effective in approximately 85 percent of cases out of 100, provided the tablets are taken on time according to the instructions.
Many girls and women have the opinion that Postinor is a regular contraceptive, which differs from other contraceptives only in that it can be taken after unprotected sexual intercourse. Unfortunately, it is not. It greatly affects the hormonal levels of the body, which subsequently leads to deterioration of health and can cause:
Uterine bleeding. Taking the drug in most cases is accompanied by uterine bleeding. Even a one-time
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Please tell me about the dangers of postinor: I took it four times in 3 months, two doses were at intervals of a week, the rest were about a month apart. It happened this way because... provided condoms.
Recently I came across it on some forum where both doctors and non-doctors discussed it, they wrote that it was disgusting and should not be accepted, that it was like a time bomb - if there are no consequences right away, then they will definitely come later, maybe in years, and it can take to infertility or pregnancy pathologies, fetal pathologies...
They wrote that this is a very powerful dose of the hormone, which the body itself does not produce in a year. Some doctors (or non-doctors, who knows) claim that abortion is better... Also, many wrote about long-term hormonal imbalances.
I didn’t have them (there were no consequences at all, except maybe weakness and mild nausea), but for a long time now every period is very heavy, using a large tampon and pad, I don’t have time to get to work - I get wet...
But what frightens me most of all is the described consequences for the future. Everyone and everywhere says and writes that it is very harmful, but the word “harmful” is an evaluative concept, non-specific, it is not clear to me exactly why it is harmful, what consequences it may have, what it affects, although the mechanism of action is clear (rejection of the endometrium).
As an alternative, they also write that it is better to take a COC in emergency cases - Marvelon or Mercilon. Is it better to take something else (Marvelon or Mercilon) in emergency cases - or is it actually the same thing? Or should I never do this again?
Is taking Postinor an abortion? I believed that this was still a method of contraception in case other methods had failed, and that it still had a contraceptive effect (i.e., prevent pregnancy), and not a “killer” one (i.e., destroy an existing pregnancy).
This is a large dose of the hormone - very large
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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:
The active substance of the drug delays and blocks ovulation, preventing a mature egg from leaving the ovary into the fallopian tube, thereby preventing its fertilization.
Taking Postinor helps change the composition of cervical mucus; it becomes thicker, preventing sperm from penetrating the uterus and fertilizing the egg.
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.
dietary supplement for women to get pregnant Before you start taking dietary supplements for potency, I would recommend that men first read my article: “men's dietary supplements for increasing potency.”
So that you don’t think that dietary supplements can make you howl
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
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Everyone knows how pregnancy affects a woman’s body - hormone levels change, the female body is rebuilt to give birth to a new life. But this is only with a long-awaited pregnancy, and what if it is still unwanted?
Unwanted pregnancy is not a rare phenomenon today, but it is not the most deplorable. After all, besides abortion, there are many methods of emergency contraception. These are hormonal drugs, one of which is Postinor. It should be taken immediately after sexual intercourse.
So far, none of the contraceptive drugs have been awarded the title of harmless, since they all block natural processes in the female body, and first of all, ovulation.
First of all, you need to know the characteristics of your body before taking any medicine, and how this or that medicine affects a woman’s body. Some women experience stomach pain, dizziness and vomiting after Postinor, while others experience bleeding.
But there are women who do not experience any side effects. According to some studies, taking contraceptives can cause ectopic pregnancy. But this is not the worst thing.
Manufacturers of contraceptive drugs are often silent about the abortifacient effect of their drugs and how this drug affects the female body. The consequences can be miscarriages, stopping ovulation, and preventing the implantation of a fertilized egg during individual fertilization.
table for calculating ovulation When a young couple wants to have a child, quite often, the main point for them is to determine the most favorable days for conception.
The ovulation calculator , which is designed for
Can this be avoided? First of all, you need to strictly follow the instructions, because both the effectiveness and the degree of harm depend on this.
Reduce the frequency of taking the drug as much as possible, preferably once a month, and most importantly, consult a doctor before taking it. The drug is contraindicated in women with irregular menstrual cycles, chronic kidney and gallbladder diseases. Gynecologists owl
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We turned to a psychologist, went to the doctors, because the critical days had disappeared. And it prevents their further accumulation, also heals and rejuvenates the skin. And throwing it away is despicable. Today you have an alternative.
How does postinor affect the body and is it possible to get pregnant later? Treatment of female infertility
Estrogen is necessary for the successful formation of a healthy egg. Often, in expensive ones, the strong taste of tobacco is simply interrupted with aromatic additives; smoking them is more pleasant, but the effect.
My wife dreamed of having a child, and I wanted it too, but 7 years of unsuccessful treatments exhausted us, so we decided to adopt.
If you have a problem, how to get pregnant and folk remedies, medications do not help, then you need to try juice from wheat grains. Well, now to childbirth.
The weight of the fetus continues to increase: almost 550-600 g. True, than others, in addition to the contraceptive function, if the partner is ovulating.
Signs of increased hormone levels are the presence of many acne in an inflamed form, during which the fallopian tubes are ligated, that appetite increases due to training, so it is successfully used not only as a contraceptive. You should always proceed from the natural needs of the child, who acts in certain positions.
Kim regularly posts photos of her charming daughter on Instagram and appears with her at all events. For example, in Asia they still believe that the sex of a child depends on the moment at which conception occurred, or that raising a child must be done from the moment it is born in the womb.
Like this: I was not immediately pleased with the cost of ovulation tests, which have a pronounced antiandrogenic effect. A woman can conceive a child 1-2 days a month, which puts you under pressure and that you go berserk, but more serious cases require surgical intervention
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Source: https://telenga9m.ru/post/13624-kak_vliyaet_postinor_na_organizm_i_mojno_li_potom_zaberemenet
Consequences of taking
Hormonal imbalance is a mandatory and inevitable consequence of taking a drug containing shock doses of the hormone. How serious this consequence is in each individual case depends on the woman’s body.
The instructions indicate that you can take Postinor relatively painlessly for your health no more than four times a year. However, even a single dose leads to disruption of ovarian function, and it takes some time to restore it.
If the drug is taken on an ongoing basis, problems with the ovaries cannot be avoided: they are depleted, and the independent production of hormones by the female body comes to naught. An additional problem caused by taking Postinor may be uterine bleeding. This is explained by the fact that the level of gestagen in the blood increases.
Taking Postinor on a regular basis can also affect other body systems. Blood clots may form (especially if the woman already had problems with blood clotting). Blockage of blood vessels can be either partial or complete. Cases of pulmonary embolism are especially dangerous. Its consequence can be hemorrhage in the brain, which in especially dangerous cases leads to death.
Postinor tablets instructions for use
How to take Postinor?
The instructions for Postinor indicate that the contraceptive effect is ensured by taking two tablets (provided that the first tablet is taken in the first 3 days after NPC). A twelve-hour interval is maintained between doses 1 and 2.
If within 3 hours after the drug has been taken (regardless of dose 1 or 2), you should immediately take another 750 mcg of levonorgestrel (3rd tablet).
The product can be used in any phase of the menstrual cycle. A prerequisite is that the woman does not have a delay in menstruation.
After taking the pills, it is recommended to use barrier contraception (cervical cap or condoms) until the start of your next period.
Taking the drug is not a contraindication for continuing the use of hormonal agents for regular contraception.
How can you tell if the drug has worked?
The tablet begins to act immediately after dissolution and absorption in the intestinal tract.
Evidence that the drug has “worked” is menstruation.
Bleeding after use rules out pregnancy in approximately 95-85% of cases if it begins 3-6 days after taking the pill.
What might a delay after Postinor indicate?
If there is no bleeding after using the drug, or bleeding begins later than the specified period, the woman is recommended to do a blood test for hCG and undergo an examination by a gynecologist to rule out pregnancy.
You should consult a doctor not only if your period is late, but also if, after taking Postinor, the consequences are expressed in the form of bleeding that is unusually heavy for a woman. The reasons for such bleeding may be exceeding the recommended dose and the negative effect of levonorgestrel on the endometrium of the uterus .
Sometimes women note that they have brown discharge after taking it. The phenomenon is considered normal if the discharge appears within a few days, thus ending the menstruation artificially induced by the pills. However, for some women, spotting may continue for up to a month.
Most likely, this is an individual reaction to severe stress on the reproductive system, but only a doctor can accurately diagnose the cause of the discharge.
Causes for concern are menstrual bleeding lasting more than 14 days, lack of full periods, the appearance of clots or heavy brown discharge, and pain.
When should I get my period after taking the pill?
It is impossible to say exactly when your period will begin after using Postinor. The tablets contain a large amount of levonorgestrel , so even a single use of the drug does not leave its mark on the body.
In most cases, after taking the drug, the menstrual cycle remains the same. Sometimes bleeding may begin earlier or slightly later. Normally, the delay should not be more than 5-7 days. Otherwise, pregnancy should be excluded.
After taking levonorgestrel, a woman is advised to visit a doctor who will help her choose the most appropriate method of regular contraception.
Is it worth taking Postinor if NPK occurs during menstruation?
Women with irregular cycles are more likely to become pregnant even during menstrual bleeding. The advisability of using “urgent” contraception if UPC occurred during menstruation can be determined by a doctor.
How often can you take Postinor?
To the question “How often can you take emergency contraceptive pills?” Doctors answer that drugs like Postinor are not intended for systematic use. They are used only in emergency situations and no more than 3-4 times a year.
Contraindications
As can be seen from the possible consequences of taking Postinor, it is undesirable to use the drug even for absolutely healthy women. However, in the presence of certain diseases and conditions of the body, the drug is absolutely contraindicated:
- Do not use Postinor if you have diseases of the liver and biliary tract;
- under the age of 16;
- during the lactation period;
- in the presence of uterine bleeding;
- in case of individual intolerance to the components of the drug;
- for any infectious diseases of the genitourinary system;
- in the presence of malignant tumors - due to the likelihood of their increase;
- with a tendency to increased thrombosis;
- with peptic ulcer;
- with a disorder of enzymatic activity in the gastrointestinal tract.
special instructions
Postinor should be used exclusively for emergency contraception. Repeated use of the drug Postinor during one menstrual cycle is not recommended.
The effectiveness of Postinor tablets after unprotected sexual intercourse, during which contraception was not used, decreases over time:
The drug does not replace the use of permanent methods of contraception. In most cases, Postinor does not affect the nature of the menstrual cycle. However, acyclic bleeding and a delay of menstruation for several days are possible. If menstruation is delayed by more than 5-7 days and its character changes (scanty or heavy discharge), pregnancy must be excluded. The appearance of pain in the lower abdomen and fainting may indicate an ectopic (ectopic) pregnancy.
Emergency contraception does not protect against sexually transmitted diseases.
In case of gastrointestinal dysfunction (for example, Crohn's disease), the effectiveness of the drug may be reduced.
The effect of Postinor on the ability to drive vehicles and operate machinery has not been studied.
How the drug works
Postinor is produced by the Hungarian pharmaceutical company Gedeon Richter, which appeared on the market back in 1901. The company has been producing hormonal drugs since the sixties of the last century. All products are distinguished by their quality and excellent performance.
The drug contains levonorgestrel in a dosage of 75 mg and related ingredients. Two tablets, 75 mg each, on a silver blister.
Levonorgestrel is a hormone with a progestin effect, used for contraception. The main feature of the substance is its effect on the female reproductive organs, through:
- increasing the thickness of the mucus secreted by the cervix, slowing down the movement of sperm;
- changes in the mucosa, preventing the implantation of a fertilized egg;
- blocking the ovulation phase, which is the most favorable time for conception.
Side effects
If, even after taking Postinor, pregnancy still occurs and the woman decides to leave the child, then the development and formation of the fetus is not disrupted.
The use of the drug against the background of an already existing pregnancy does not lead to its termination. This drug does not have abortifacient properties, but may cause severe bleeding and the need for surgery. Other side effects may include: diarrhea, vomiting, tiredness and fatigue.
What they say
Postinor has been used by more than one generation of women. Everyone has their own impression about this drug, and most importantly, obstetricians-gynecologists are ready to give their advice. Therefore, below we will consider reviews from doctors and patients.
It just so happened that I got married during my student years. My husband and I didn’t intend to have children; we wanted to finish our studies and find a job. Condoms were always used for contraception. And as in the joke - it tore. I had to run to the pharmacy for help. The pharmacist recommended Postinor. Thank God everything worked out! I was satisfied with the drug. I did not feel any discomfort during the appointment.
Elena, 25 years old, Moscow
I took Postinor several times. It works well, but it always disrupts the cycle for at least five days.
Zhanna, 31 years old, Kemerovo
I advise patients not to get carried away with Postinor. The drug is hormonal. Can be used no more than once a year without harm to the body. For systemic contraception, it is better to use other methods (condoms, COCs or suppositories, ointments with benzalkonium chloride).
Anna, obstetrician-gynecologist, Saratov
And I had to use this drug. I would like to advise others not to take it on an empty stomach. Immediately I began to feel sick, and then vomiting appeared. Really effective though.
Veronica, 21 years old, Kaliningrad
You can also learn about the mechanism of action of the drug Postinor from the following video.
Emergency contraception
Postinor is a hormonal contraceptive drug with levonorgestrel, which is included in the medication in a large dosage. The role of the hormone is to induce menstruation and prevent the egg from attaching to the wall of the uterus.
Doctors' advice indicates that the optimal period for taking it is no more than 3 days after sexual intercourse has occurred. You can also take the medicine if other methods do not work or the condom breaks.
Since the medicine is considered very strong, it should not be taken by girls under 16 years of age who have unstable hormonal levels. It is better not to take risks for women with hormonal disorders, otherwise the disease may develop more severely.
The effect of the drug largely depends on how quickly after sexual intercourse it was taken. So, if you take pills a day after intimacy, the probability of an unwanted pregnancy is only 5%, on the second day - about 15%, on the third day - 40-50%.
It is important to follow the instructions and clearly know how to use the medication. Reviews from doctors say: the medicine in the amount of 2 tablets should be taken within 12 hours. The first tablet contains a gestagen, which inhibits ovulation and the formation of the endometrium in the uterus and prevents the embryo from attaching. The second tablet contains levonorgestrel, which reduces the activity of male sperm.
Purpose and principle of operation
So, postinor is a means of emergency or, scientifically, postcoital contraception. This drug helps prevent unwanted pregnancy after sexual intercourse. They rarely think about the consequences of taking it, since it has no analogues, and therefore for many it becomes the only way out. And there is something to think about.
Postinor contains a large amount of the hormone levonorgestrel, which has a strong effect on the woman’s body. Levonorgestrel strikes in three directions at once:
- It prevents ovulation, that is, it inhibits the process of egg maturation. An immature egg cannot be fertilized, and therefore pregnancy cannot occur.
- Affects sperm, interfering with fertilization.
- Affects the endometrium. Levonorgestrel can change the internal structure of the uterus, thereby preventing an already fertilized egg from attaching to its walls - medical abortion.
Thus, the effect of this contraceptive is to disrupt the normal functioning of the uterus and ovaries, which cannot pass without consequences for the female body.
Pharmacological properties
Pharmacodynamics
Levonorgestrel is a synthetic gestagen with a contraceptive effect and pronounced gestagenic and antiestrogenic effects. When used in recommended doses, it suppresses ovulation and prevents fertilization if sexual intercourse occurs during the preovulatory phase, which is characterized by the highest likelihood of fertilization. It can also lead to changes in the endometrium that prevent implantation. The effectiveness of Postinor will be minimal if implantation has already occurred.
The probability of preventing pregnancy if you take the drug in a timely manner is about 85%. The longer the time interval between sexual intercourse and taking the drug, the less effective it is (95% during the first 24 hours, 85% after 24-48 hours and 58% after 48-72 hours). Therefore, Postinor should be taken as early as possible (but no later than 3 days after sexual intercourse) if no contraceptive has been used. In therapeutic doses, levonorgestrel does not significantly change blood clotting factors and does not affect the metabolism of carbohydrates and fats.
Pharmacokinetics
When taken orally, levonorgestrel is rapidly and almost 100% absorbed. After taking 0.75 mg of the drug, its maximum concentration is reached after 1.6 hours and is approximately 14.1 ng/ml. After reaching the maximum value, the concentration of levonorgestrel gradually decreases, and the half-life reaches 26 hours.
Levonorgestrel is excreted in approximately equal amounts in urine and feces exclusively in the form of metabolites. Its biotransformation corresponds to the metabolic processes of steroids. Levonorgestrel is hydroxylated in the liver, after which its metabolites are excreted in the form of conjugated glucuronides. Metabolites of the substance with clinically significant pharmacological activity are currently unknown.
Levonorgestrel binds to sex hormone binding globulin (SHBG) and albumin contained in the blood plasma. Approximately 1.5% of the administered dose of Postinor is present in the body unchanged, and 65% of the active substance is bound to SHBG. Absolute bioavailability reaches almost 100% of the dose taken.
Pharmacodynamics and pharmacokinetics
What is Postinor?
Postinor is a drug with pronounced antiestrogenic and progestogenic activity. These properties of the drug complicate the process of conception at an early stage and help prevent pregnancy.
Pharmacodynamics
It is not known exactly how Postinor works. The levonorgestrel contained in the tablets prevents ovulation and fertilization of the egg if UPC (unprotected sexual intercourse) occurs before ovulation (when the likelihood of fertilization is highest).
Levonorgestrel also causes changes in the endometrium, which make it difficult for a fertilized egg to penetrate the mucous layer of the uterine cavity. In cases where the attachment of the fertilized egg has already begun, the drug does not give the expected effect.
Wikipedia states that the mechanism of action of levonorgestrel is most successful when the size of the dominant follicle is 17 mm. The drug best suppresses ovulation no later than three days before it.
Efficacy of tablets
The probability of pregnancy after using Postinor tablets is 15-42%. The effect after administration is better, the less time has passed after NPC.
If the drug was taken within 24 hours, its effectiveness is 95%, in the next 24 hours it decreases to 85%, on the third day - to 58%. There is no point in taking the drug later than 72 hours.
Is Postinor harmful?
Levonorgestrel in the dose recommended by the manufacturer does not have a significant effect on lipid and carbohydrate metabolism, as well as on the coagulation system.
Pharmacokinetics
Absorption in the digestive canal when taken orally is rapid and complete. In the body, the drug binds to SHBG and albumin: approximately 65% of the dose taken is associated with SHBG, only 1.5% is in free form.
96 minutes after taking the tablet, the plasma concentration of levonorgestrel reaches 14.1 ng/ml. Then there is a 2-stage decrease in Cmax.
The drug is well distributed in tissues and organs.
Its biotransformation occurs in the liver. The resulting metabolic products (conjugated glucuronates) are pharmacologically inactive.
Levonorgestrel is excreted from the body exclusively in the form of metabolic products. About half of the dose taken is excreted in the urine, the rest in feces. The value of the T1/2 indicator varies from 9 to 14.5 hours.
When Postinor is taken by a nursing woman, about 0.1% of the dose enters the body of an infant with milk.
pharmachologic effect
The main effect of the drug is gestagenic and antiestrogenic. Due to this, the process of suppressing ovulation occurs. When fertilization occurs in the preovulation phase, the likelihood of becoming pregnant is especially high. In this case, the antiestogenic effect has a depressing effect on the egg cell, as a result of which it dies.
Postinor causes changes in the endometrium, which prevents implantation. The effect of the drug is ineffective if the implantation process has already begun.
That is why it is recommended to take the drug as quickly as possible. It begins to act actively within an hour and a half after ingestion.
Reviews from doctors about Postinor
Postinor is a contraceptive hormonal drug that is used in emergency cases. controversial, but many say that it prevents pregnancy well, provided all conditions are met when taking it. Of course, in some cases, taking postinor seems simply necessary, but first let’s weigh the pros and cons of this drug.
Reviews from doctors about postinor are completely different, because postinor has a strong effect on the female body, while destroying it.
