Postinor's analogue is less harmful. The use of postinor analogues

Postinor - a means to prevent unwanted pregnancy, and its effectiveness has been proven in practice by many women. This potent drug belongs to the line emergency funds contraception, it is based on the effect of an artificial hormone on the body. Due to its powerful effect, Postinor should be used with extreme caution, preferably after consulting a doctor.

Chemical composition

The active substance is an artificial hormone - levonorgestrel. In 1 tablet of the drug it contains 0.75 milligrams.

Hormone action:

delays or stops ovulation by preventing the release of an egg from the ovary;
blocks spermatozoa, preventing the fertilization of an already released egg;
does not allow an already fertilized egg to be fixed, thus preventing pregnancy.

In addition to the hormone, the agent includes excipients: colloidal silicon dioxide, potato starch, magnesium stearate, talc, corn starch, lactose monohydrate.

Release form

Postinor is produced in foil and PVC blisters, 2 tablets in a blister. The carton contains 1 blister and instructions for using the medicine.

Indications

Postinor is indicated for women with a regular menstrual cycle for emergency postcoital contraception. At its core, the drug is an alternative to traditional contraceptives.

slipping or mechanical damage condom;
rupture, shift of the diaphragm or cervical plate;
incorrect calculation of ovulation days when using the calendar method;
unsuccessfully interrupted sexual intercourse;
removal or loss of an intrauterine device;
skipping 3 or more permanent oral contraceptive pills.

Application methods

The effectiveness of Postinor directly depends on the time of its use. The first tablet is taken no later than 72 hours after intercourse.

Postinor does not guarantee 100% contraception, but if the first pill is taken in the first 24 hours after intercourse, the effectiveness of the drug is 95%. Then it decreases markedly: if Postinor is taken within 25-48 hours after unprotected intercourse, then the chances of preventing an unwanted pregnancy are 85%, and in the case of the first intake of the drug within 49-72 hours, they decrease to 58%. The second tablet must be taken 12 hours after the first.

Postinor cannot replace traditional means contraception, and its reception is an emergency, emergency method. The drug has a strong effect on the body, and therefore it is strongly not recommended to take it repeatedly within one menstrual cycle. The interval between postinor course intake should be at least 3-6 months.

Contraindications

Diseases of the liver, gallbladder and small intestine(Crohn's disease);
Pregnancy and the period of breastfeeding;
Allergic reaction to components;
Adolescence, as the drug can cause hormonal disbalance, which will negatively affect the unformed reproductive system.

In order to avoid a decrease in efficiency, it is not recommended to use Postinor in cases of parallel administration. medicines used in the treatment of fungal infections and thrombosis, or containing drugs that conflict with the active substance of Postinor, in particular, St. John's wort.

Side effects

Violations by digestive system(nausea, pain in the lower abdomen, vomiting, diarrhea);
increased fatigue;
Bleeding not associated with menstruation;
Allergic reactions (urticaria, itching, swelling of the face);
Headache;
Painful swelling of the mammary glands;
Delayed menses.

Usually the duration of side effects does not exceed 5-7 days, after which the body returns to normal. Otherwise, you need to see a doctor.

Overdose

An overdose of a drug is manifested in the idea of increasing its side effects. In case of overdose, do not self-treat, the doctor should prescribe symptomatic therapy, which will eliminate backfire using Postinor.

Analogues

Postinor has been produced since the 70s of the XX century. Despite many side effects and contraindications, it is successfully used for emergency contraception and today. At the same time, a number of modern analogues Postinora.

Mechanisms of action alternative drugs similar - these drugs inhibit ovulation, disrupt the process of fertilization of the egg by spermatozoa and prevent its advancement to the uterus.

Dwella

Relatively new postcoital contraceptive. The active substance is ulipristal acetate in the amount of 30 milligrams. It is enough to take the drug in the amount of 1 tablet. Dwella - hormonal drug, indicated for emergency contraception up to 120 hours after unprotected intercourse.

Contraindications: pregnancy, lactation, adolescence, lactose intolerance (the drug contains lactose in the form of an excipient), bronchial asthma, severe form of renal and hepatic insufficiency.

Side effects: headache nausea, abdominal pain, irritability, fatigue, allergic reactions, in rare cases sleep and appetite disorders.

Ginepriston

Developed by the Russian pharmaceutical company OAO Nizhpharm as a gentle analogue of Postinor. Active substance: mifepristone with a content of 0.01 grams per 1 tablet. Mifepristone is non-hormonal in origin. Ginepristone should be taken as a single dose no later than 72 hours after unprotected intercourse or unreliable contraception.

Contraindications: bronchial asthma, renal, hepatic and heart failure, pregnancy and lactation. Due to the non-hormonal nature of the drug, there are no contraindications to the use of Ginepristone in adolescence.

Side effects:

Jenale

The drug is produced under license from Pfizer and is almost complete analogue Ginepristone is an active substance, its content and form of release of tablets are identical. The differences between these drugs are only in the composition of excipients. Genale should be consumed once within 72 hours after intercourse.

Contraindications: bronchial asthma, renal, hepatic and heart failure, pregnancy and lactation.

Side effects: headache, weakness, nausea, allergic reactions, bloody issues, violation of the menstrual cycle.

Lupinor

A drug based on levonorgestrel. Production - India. Lupinor is available in tablets containing 1.5 milligrams of levonorgestrel, which is twice the content of this hormone in a single dose of Postinor. Lupinor should be taken once no later than 72 hours after unprotected intercourse.

Contraindications: diseases of the liver, gallbladder and small intestine (Crohn's disease), pregnancy and breastfeeding, adolescence, allergies to components.

Side effects:

Microlute

The drug is available in mini pill format, 35 tablets in a blister. The content of levonorgestrel in a tablet is 0.03 milligrams. Microlut is used not only as a means of emergency contraception, but also as a permanent oral contraceptive. For emergency prevention of pregnancy, the drug should be taken twice, 20 tablets each: the first time - no later than 72 hours after unprotected intercourse, the second - 12 hours later.

Contraindications: pregnancy, breastfeeding, adolescence.

Side effects: nausea, headaches, fatigue, bleeding, menstrual irregularities, allergic manifestations.

Model 911

Israeli product. It is a tablet containing 1.5 milligrams of levonorgestrel. Modell 911 for emergency prevention of pregnancy is taken once no later than 72 hours after the need arises. The manufacturer claims that the timely intake of Modell 911 prevents pregnancy in 85% of cases.

Contraindications:

Side effects: nausea, abdominal pain, vomiting, diarrhea, bleeding not associated with menstruation, delayed menstruation, itching, urticaria.

Evadir 2

Tablets made in India containing 0.75 milligrams of levonorgestrel. 2 tablets should be taken in a course similar to Postinor.

Contraindications: pregnancy, adolescence and breast-feeding.

Side effects: endocrine disorders (not menstrual bleeding, delayed menstruation) and nervous systems(dizziness headaches) gastrointestinal tract(diarrhea, nausea, vomiting), fatigue.

Escapelle

The drug differs from Postinor in the dosage of levonorgestrel. 1 tablet of Escapel contains 2 times more active substance- 1.5 milligrams.

It is taken as a single dose no later than 72 hours after unprotected intercourse. Some sources claim that a single dose of levonorgestrel in the amount of 1.5 milligrams has a less negative effect on a woman's body, however, opinions differ.

Contraindications: diseases of the liver, gallbladder and small intestine (Crohn's disease), pregnancy, lactation, adolescence, allergy to components.

Side effects: nausea, abdominal pain, vomiting, diarrhea, bleeding not associated with menstruation, delayed menstruation, itching, urticaria.

Eskinor-F

Cheap analogue of Postinor. This Indian-made product is available in 2 dosages: 1 tablet with 1.5 milligrams of levonorgestrel, or 2 tablets containing 0.75 milligrams of this hormone. They should be taken according to the packaging - either once within 72 hours, or in a course of 2 doses.

Contraindications: liver failure, diseases of the gallbladder and small intestine (Crohn's disease), lactose intolerance, pregnancy, lactation, adolescence, allergy to components.

Side effects: nausea, abdominal pain, vomiting, diarrhea, bleeding not associated with menstruation, delayed menstruation, itching, urticaria.

In every woman's first aid kit, regardless of whether she uses contraceptive pills regularly or takes them from time to time, there should be means of emergency (post-hiccup) contraception: drugs "Postinor" or "Ginepriston", "Escapel", "Zhenale".

In fact, the Postinor tablets, its analogues cannot be considered real contraceptive, because the principle of their operation is fundamentally different from the operation of conventional contraceptive drugs.

First, postcoital drugs prevent eggs from leaving the ovary. Secondly, if this still happened, they prevent the egg (already fertilized) from attaching to the wall of the uterus and continuing development. Thirdly, they prevent the fertilization of the egg. Finally, if pregnancy does occur, Postinor can cause medical abortion.

Classic birth control pills simply prevent the release of an egg from the ovary. Accordingly, if there is no egg, there can be no fertilization.

Some experts on the sidelines call the Postinor tablets, analogues of this drug and other postcoital contraceptives "drugs for widows", implying occasional use of the drug.

There are many reasons why you should not take these drugs on a regular basis. With constant use, the structure of the endometrium changes, severe adverse reactions from many organs.
Addiction occurs, the effectiveness of the drug decreases.
Uterine bleeding may begin.

The question rightly arises: "If the medicine cannot be taken constantly, when is it best to use it?" The answer is simple: "In an emergency." That is why drugs of this kind are popularly called "the morning after." What are these emergency cases?

The drug "Postinor", analogues of this remedy can be taken after intercourse for 72 hours. Naturally, the more time passes, the lower the effectiveness of the impact. However, even after 72 hours, there is a 58% chance that the drug will work and pregnancy will not occur.

What are these emergency cases?

rape;
unplanned unprotected intercourse;
rare sexual intercourse (not more than 1 time between periods);
condom rupture or other unforeseen situations.

Women are often interested in what is better: postinor or escapelle. The principle of operation of these contraceptives is the same, but the drug "Postinor" belongs to the earlier ones, not so good balanced squads. After taking it, every second woman has nausea. It can adversely affect the development of pregnancy, if it does occur.

The drug "Escapel" was created later, it has less side effects, and you can drink it within 96 hours after the act. For Postinor funds, this period is only 72 hours.

To the question: postinor or ginepristone is more effective, doctors often answer that all drugs of later generations are more effective, less harmful. However, in the case of the drug "Ginepriston" this truth does not work. Just like Postinor tablets, it can cause nausea or vomiting, spotting, and cycle disturbance. And from that, and from another contraceptive, urticaria, dizziness, hyperthermia, weakness may appear.

In addition, it is important to always remember that all similar drugs have many contraindications. They are not recommended:

with renal and adrenal insufficiency;
with liver failure;
with lung diseases;
with extragenital pathology;
when breastfeeding.

If you need to take a postcoital contraceptive without fail, it is better to do this on the advice of a doctor.

Are there analogues of Postinor, not so harmful??

Anyuta

Emergency contraceptives
Ginepriston or Agest (Gynepriston)
Modern hormonal postcoital drug. Compared to Postinor, it is almost harmless, because it is an anti-progesterone, it is no less effective in preventing pregnancy, but this is not a huge dose of hormones, but a small dose of an antihormone. Ovarian damage does not occur.
Escapelle
An exclusive new product for emergency contraception. Recommended for use within 96 hours of unprotected sex. The earlier the pill is taken, the more effective its action.
Mifegin (Mifepristone)
A modern drug, with the help of which medical (non-surgical) termination of pregnancy is performed for a period from the first day of delayed menstruation to 8 weeks. To carry out this procedure, you must contact a gynecologist licensed to use this drug.
Postinor (Postinor)
Hormonal drug from the "last century" for emergency contraception. The earlier the first tablet was taken, the more effective the action.
ATTENTION!! !
This outdated drug contains a very high dose of the hormone levonorgestrel, many times higher than the content of this hormone in oral contraceptives. This dose is a powerful blow to the ovaries. In addition to the fact that the onset of pregnancy will be interrupted, the menstrual cycle may be disrupted.

Therefore, this drug should not be used more than 2 times a year and considered as one of the possible contraceptives! This applies in particular to young women under the age of 18, whose hormonal balance has not yet been established.

Are there analogues of postinor? but not as strong

There is an alternative!
The drug is called ESCAPEL.
IT IS GENERALLY CAUSED FOR 96 HOURS!! !
This drug is intended for emergency cases, in no case replaces regular contraception. The use of Escapel® is recognized as the most effective and well-tolerated method of emergency contraception. The drug is extremely convenient to use: 1.5 mg of levonorgestrel in one tablet, which provides the necessary dosage of levonorgestrel, sufficient to prevent pregnancy, and moderately low in order to prevent the onset of an unwanted pregnancy for a woman in the most gentle way. 1.5 mg levonorgestrel is safe for female body dose of the drug, which is confirmed by numerous clinical research worldwide. Levonorgestrel does not prevent fertilization in all cases. In the case when the time of sexual intercourse is not exactly known, or when more than 96 hours have passed since intercourse without contraception, the probability of fertilization is high. In such cases, taking the Escapelle tablet after the second sexual intercourse will not bring the desired result.
Escapela tablet can be taken on any day of the menstrual cycle, provided that the previous menstruation was normal. After application this tool barriers should be used contraceptives, such as a condom, until the next menstruation.

Natalia Aquilina

all postcoital contraceptives are essentially the same - they contain a horse dose of hormones, and they are all equally harmful to health ... it is, as they say, last resort, it’s better not to take it at all, the consequences are very unpleasant (I know from my own experience)

Is there any analogue of postinor, which is less harmful to the body?

Natalia

Any preparation of emergency contraception contains a "shock" dose of hormones - this is the basis of the principle of its action. All are approximately equally unsafe in terms of violation hormonal background. Choose other measures and methods of protection.

Sardine Lida

escapelle, but this is also almost a mini abortion, there are no less harmless ones with the same result. read about washing with lemon juice, drinking decoctions from the motherboard, etc., but it seems to me that this is tantamount to putting a mesh on the pussy with iodine and waiting for the result ... choose for yourself a different method of contraception than the calendar one - my friend flew into having sex during her period ...

In Russia, for emergency, "fire" contraception, the Postinor drug containing 0.75 mg of levonorgestrel is often used, however, please note that WHO does not recommend it for use - contraceptive efficacy is too low and often there are side effects. As a means of emergency contraception, he has the right to exist, but it is better not to abuse Postinor, especially since there is a reasonable alternative to him! (see below).

INSTRUCTIONS FOR USE

COMPOSITION AND FORM OF RELEASE:

tab. 0.75 mg, No. 2 Levonorgestrel 0.75 mg.
Other Ingredients: lactose, colloidal anhydrous silica, magnesium stearate, talc, corn starch, potato starch, lactose monohydrate.

PHARMACOLOGICAL PROPERTIES:

The mechanism of action of levonorgestrel (D-13β-ethyl-17β-ethynyl-17-hydroxy-4-gonen-3-one) at the indicated dose is mainly due to the inhibition of ovulation and the prevention of fertilization (in the event that sexual intercourse occurred before ovulation, when the probability of fertilization is higher), as well as changes in the endometrium when taking the drug, preventing the implantation of a fertilized egg. Postinor is ineffective if the implantation of a fertilized egg has already occurred.

With its use, unwanted pregnancy can be prevented in approximately 85% of cases. The longer the interval between sexual intercourse and taking Postinor, the lower the effectiveness of the drug (in the first 24 hours - 95%; from 24 to 48 hours - 85%; from 48 to 72 hours - 58%).

INDICATIONS:

Emergency prevention of unwanted pregnancy if the use of the drug Postinor is carried out within 72 hours after intercourse and other contraceptives were not used or they turned out to be unreliable.

APPLICATION:

Inside 2 tablets. To achieve a more reliable effect, the first Postinor tablet should be taken as soon as possible after intercourse (but not later than 72 hours), and the second - 12 hours (but not later than 16 hours) after taking the first. If vomiting occurs within 3 hours after taking any tablet, another 1 tablet should be taken.

It can be taken on any day of the menstrual cycle, but only if the previous menstruation was timely. After using the drug until the next menstruation, it is necessary to use barrier contraceptives. After using Postinor, taking a permanent oral hormonal contraceptive is not contraindicated.

CONTRAINDICATIONS:

Hypersensitivity to the components of the drug, age under 16 years (insufficient experience with the drug).

SIDE EFFECTS:

Nausea, pain in the lower abdomen, headache, fatigue, dizziness, tension of the mammary glands, vomiting, diarrhea, spotting menstrual bleeding. There may be a violation of the menstrual cycle, but in most women the next menstruation occurs on the expected date. If menstruation is delayed by more than 5 days, pregnancy must be excluded.

SPECIAL INSTRUCTIONS:

The drug can be used only in extreme cases - it is not a contraceptive for regular use. Its reception does not always prevent pregnancy. If a woman does not remember when sexual intercourse took place, or if unprotected intercourse has already taken place in the same menstrual cycle 72 hours before taking Postinor, fertilization is possible. In this case, the use of this tool is ineffective. If menstruation is delayed by more than 5 days or its onset is timely, but the course is different from usual, it is necessary to exclude a possible pregnancy.

After application, menstruation often occurs at the expected time and occurs as usual. In isolated cases, menstruation may begin a few days earlier or later than the expected date. After use, a doctor's examination is recommended to decide whether to use the method for regular contraception.

If Postinor was taken due to missing a regular hormonal contraceptive, and during the next 7-day break in taking the contraceptive, menstruation did not occur, pregnancy should be excluded. Repeated use during one menstrual cycle is not recommended due to possible violation menstrual cycle.

Postinor should not be taken during pregnancy; The drug does not terminate an already existing pregnancy. In the event of pregnancy with the use of progestogens, a teratogenic effect was not detected.

Levonorgestrel practically does not pass into breast milk. Potential impact of levonorgestrel on child development infancy can be reduced if both tablets are taken immediately after breastfeeding and refrain from feeding after taking the drug.

OVERDOSE:

Severe side effects after taking the drug in large doses not described. Nausea, bleeding are possible. There is no specific antidote, treatment is symptomatic.

Remember that Postinor tablets should not be taken more than once a month, as side effects may occur. The most common side effects are bleeding or nausea. If you have bleeding, be sure to consult a gynecologist. It also happens that, on the contrary, after taking Postinor, menstruation does not occur. This may be not only due to the drug, but also due to the fact that you have become pregnant, since the method does not provide 100% protection. In this case, you should also consult a gynecologist as soon as possible!

NEW - Alternative to Postinor!

Warning:
Emergency contraceptive pills do not protect against sexually transmitted diseases. If you suspect that you have been exposed to an STI, you should contact your doctor immediately. Also, they do not affect an existing pregnancy and cannot cause its artificial interruption!

Postinor replacement:

In this article, you can read the instructions for use medicinal product Postinor. Reviews of site visitors - consumers are presented this medicine, as well as the opinions of doctors of specialists on the use of Postinor in their practice. We kindly ask you to actively add your reviews about the drug: the medicine helped or did not help get rid of the disease, what complications and side effects were observed, perhaps not declared by the manufacturer in the annotation. Postinor analogues, if available structural analogues. Use for emergency contraception. menstruation, pain and possible pregnancy after taking contraceptive drug. Effect of alcohol on drug availability.

Postinor- a synthetic drug with a contraceptive effect, pronounced gestagenic and antiestrogenic properties. With the recommended dosing regimen, the active ingredient of the drug levonorgestrel inhibits ovulation and fertilization if sexual contact occurred in the pre-ovulatory phase, when the possibility of fertilization is greatest. It can also cause changes in the endometrium that prevent implantation. The drug is not effective if implantation has already occurred.

Efficacy: Postinor tablets can prevent pregnancy in about 85% of cases. The more time elapsed between sexual intercourse and taking the drug, the lower its effectiveness (95% during the first 24 hours, 85% from 24 to 48 hours and 58% from 48 to 72 hours). Thus, it is recommended to start taking Postinor tablets as soon as possible (but no later than 72 hours) after sexual contact, if no drugs have been used. protective measures. At the recommended dose, levonorgestrel does not have a significant effect on blood coagulation factors, fat and carbohydrate metabolism.

Pharmacokinetics

At oral intake Postinora drug is rapidly and almost completely absorbed. Absolute bioavailability is almost 100% of taken dose. Levonorgestrel is excreted approximately equally by the kidneys and through the intestines exclusively in the form of metabolites. Biotransformation of levonorgestrel corresponds to the metabolism of steroids.

Indications

emergency (postcoital) contraception (after unprotected intercourse or unreliability of the contraceptive method used).

Release forms

Tablets 0.75 mg.

Instructions for use and method of use

The drug is taken orally. It is necessary to take 2 tablets in the first 72 hours after unprotected intercourse. The second tablet should be taken 12 hours (but not later than 16 hours) after taking the first tablet.

To achieve a more reliable effect, both tablets should be taken as soon as possible after unprotected intercourse (no later than 72 hours).

If vomiting occurs within 3 hours after the 1st or 2nd dose of the Postinor tablet, then another Postinor tablet should be taken.

Postinor can be used at any time of the menstrual cycle. In the case of an irregular menstrual cycle, pregnancy must first be excluded.

After taking an emergency contraceptive, a local barrier should be used until the next menstrual period. contraceptive methods(e.g. condom, cervical cap). The use of the drug during repeated unprotected intercourse during one menstrual cycle is not recommended due to an increase in the frequency of acyclic spotting / bleeding.

Side effect

urticaria, rash, itching, swelling of the face;
vomiting, diarrhea;
dizziness, headache;
soreness in the chest;
delayed menstruation (no more than 5-7 days; if menstruation is delayed for a longer period, pregnancy must be excluded);
nausea;
fatigue;
pain in the lower abdomen;
acyclic spotting (bleeding).

Contraindications

adolescence up to 16 years;
severe liver failure;
pregnancy;
rare hereditary diseases such as lactose intolerance, lactase deficiency or glucose-galactose malabsorption;
hypersensitivity to the components of the drug.

Use during pregnancy and lactation

Postinor is contraindicated for use during pregnancy. If pregnancy occurs while using emergency method contraception, based on the available data, no adverse effect of the drug on the fetus has been identified.

Levonorgestrel is excreted from breast milk. After taking the drug, breastfeeding should be stopped for 24 hours.

special instructions

Postinor should only be used for emergency contraception. Repeated use of the drug Postinor during one menstrual cycle is not recommended.

The effectiveness of Postinor tablets after unprotected intercourse, in which contraceptives were 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, there may be acyclic spotting and a delay in menstruation for several days. With a delay in menstruation for more than 5-7 days and a change in its nature (scanty or copious discharge) to exclude pregnancy. The appearance of pain in the lower abdomen, fainting may indicate an ectopic (ectopic) pregnancy.

Adolescents under 16 in exceptional cases(including during rape) a gynecologist's consultation is necessary to confirm pregnancy.

After emergency contraception, a consultation with a gynecologist is recommended to select the most appropriate method of permanent contraception.

Emergency contraception does not protect against sexually transmitted diseases.

With violations of the function of the gastrointestinal tract (for example, with Crohn's disease), the effectiveness of the drug may decrease.

Simultaneous administration of the drug Postinor and alcohol increases the risk of bleeding and increases the load on the liver (hepatotoxicity).

Influence on the ability to drive vehicles and control mechanisms

The effect of Postinor on the ability to drive vehicles and mechanisms has not been studied.

drug interaction

The following drugs may reduce the effectiveness of levonorgestrel: amprecavil, lansoprazole, nevirapine, oxcarbazepine, tacrolimus, topiramate, tretinoin, barbiturates including primidone, phenytoin and carbamazepine, preparations containing St. John's wort ( Hypericum perforatum), as well as rifampicin, ritonavir, ampicillin, tetracycline, rifabutin, griseofulvin. Levonorgestrel reduces the effectiveness of hypoglycemic and anticoagulant (coumarin derivatives, phenindione) drugs. Raises plasma concentrations GKS. Women taking these drugs should contact their doctor.

Preparations containing levonorgestrel may increase the risk of cyclosporine toxicity due to suppression of its metabolism.

Analogues of the drug Postinor

Structural analogues according to active substance:

Levonorgestrel;
Microlute;
Mirena;
Norplant;
Escapelle;
Eskinor-F.

In the absence of analogues of the drug for the active substance, you can follow the links below to the diseases that the corresponding drug helps with and see the available analogues for the therapeutic effect.

In the medicine cabinet of every woman, regardless of whether she uses contraceptive pills regularly or takes them from time to time, there should be emergency (post-hiccup) contraception: Postinor or Ginepriston, Escapelle, Zhenale.

In fact, the Postinor tablets, its analogues cannot be considered real because the principle of their action is fundamentally different from the action of conventional contraceptive drugs.

First, they do not allow eggs to leave the ovary. Secondly, if this still happened, they prevent the egg (already fertilized) from attaching to the wall of the uterus and continuing development. Thirdly, they prevent the fertilization of the egg. Finally, if pregnancy does occur, Postinor can cause medical abortion.

Classic birth control pills simply prevent the release of an egg from the ovary. Accordingly, if there is no egg, there can be no fertilization.

Some experts on the sidelines call the Postinor tablets, analogues of this drug and other postcoital contraceptives "drugs for widows", implying occasional use of the drug.

There are many reasons why you should not take these drugs on a regular basis. With constant use, the structure of the endometrium changes, severe adverse reactions from many organs appear.
Addiction occurs, the effectiveness of the drug decreases.
Uterine bleeding may begin.

What are these emergency cases?

rape;
unplanned unprotected intercourse;
rare sexual intercourse (not more than 1 time between periods);
condom rupture or other unforeseen situations.

Women are often interested in what is better: postinor or escapelle. The principle of action of these contraceptives is the same, but the drug "Postinor" belongs to the earlier, not so well-balanced formulations. After taking it, every second woman has nausea. It can adversely affect the development of pregnancy, if it does occur.

The drug "Escapel" was created later, it has fewer side effects, and you can drink it within 96 hours after the act. For Postinor funds, this period is only 72 hours.

In addition, it is important to always remember that all such drugs have many contraindications. They are not recommended:

with renal and adrenal insufficiency;
with liver failure;
with lung diseases;
with extragenital pathology;
when breastfeeding.

If you need to take a postcoital contraceptive without fail, it is better to do this on the advice of a doctor.