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Side Effects of Postinor-2 on Menstruation: dosage, best time to use

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Postinor-2 side effects

Ever took Postinor-2 and your cycle became messed up? Well, that is one of the major side effects of Postinor-2 on menstruation. But that is not the only one.

Key Points:

  • Postinor-2 is a type of emergency contraceptive pill that contains levonorgestrel, a synthetic hormone that is used to prevent pregnancy after unprotected sex.
  • Some of the common side effects of Postinor-2 on menstruation include changes in menstrual flow and timing, menstrual cramps, spotting, breast tenderness, nausea, vomiting, and headaches.
  • Postinor 2 should not be used as a regular form of contraception, but only as an emergency option when other contraceptive methods have failed or were not used. 

Everyone has experienced being caught in the rain without an umbrella at some point. Whether you left your house without one or the wind was so strong, it damaged the one you had, when you become exposed to rain, your next best option is to find a place of shelter.

In the same way, whether you engage in unprotected sex or experience contraceptive failure, the use of emergency contraception, such as Postinor-2, becomes an important option to prevent unintended pregnancies. 

However, like any medication, Postinor-2 may have potential side effects, including its impact on menstruation.

In this article, we discuss how Postinor-2 works, the potential side effects of Postinor-2 on menstruation, and when to contact your healthcare provider if you experience these side effects.

How does Postinor-2 work: Dosage and best time to take it

side effects of postinor-2
Credit: Canva

Postinor 2 is a type of emergency contraceptive pill that contains levonorgestrel, a synthetic hormone that is used to prevent pregnancy after unprotected sex or contraceptive failure, such as a condom breakage or missed birth control pills.

Postinor 2 works primarily by preventing or delaying ovulation (the release of an egg from the ovary), to reduce the chances of fertilization by sperm. 

It is taken orally. The two tablets is usually taken together.

It is most effective when taken as soon as possible after unprotected sex, preferably within 72 hours (3 days).  When used within 5 days after intercourse, it can still prevent up to 95% of pregnancies. 

However, it is not intended for regular use and should only be used in emergency situations. 

Other forms of contraception appropriate for long term use include condoms, oral contraceptive pills, and intrauterine devices (IUDs).

It is also important to note that while Postinor 2 may prevent unintended pregnancies, it does not protect against sexually transmitted infections, including the human immunodeficiency virus (HIV) and Hepatitis B.

Postinor 2 is generally considered safe and effective, but like any medication, it has potential side effects. 

The most common side effects of Postinor-2 are related to hormonal changes, which can affect menstruation. It is crucial to understand these potential after effects of Postinor-2 on menstruation in order to make informed decisions when considering its use.

3 Major Side Effects of Postinor-2 on Menstruation

side effects of postinor-2
Credit: Canva

1. Changes in Timing:

Postinor 2 can potentially disrupt the normal menstrual cycle. Some females may experience irregular periods where the timing of their menstrual bleeding is altered. 

This can include periods that come earlier or later than expected or even skipped periods. The hormonal changes caused by Postinor 2 can interfere with the normal hormonal fluctuations that regulate the menstrual cycle, leading to these disruptions.

2. Changes in flow:

In addition to changes in timing, the flow of menstrual periods may also be affected by Postinor 2. 

Some persons may experience heavier or lighter menstrual bleeding than usual after taking Postinor 2. These changes in menstrual flow are usually temporary and return to normal in a few menstrual cycles.

3. Spotting:

Postinor 2 can also cause spotting or breakthrough bleeding, which refers to light bleeding or spotting between menstrual periods.

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Other side effects of Postinor-2

In addition to the above, Postinor 2 may also cause other symptoms related to menstruation. These symptoms may vary from person to person and may include:

  1. Menstrual Cramps: Some women may experience increased menstrual cramps or abdominal pain after taking Postinor 2. These cramps can be mild to severe and may last for a few days.
  1. Breast Tenderness: Postinor 2 can also cause breast tenderness or sensitivity in some women. The hormonal changes caused by Postinor 2 can affect the breast tissue and lead to discomfort or pain.

Other effects include headache, nausea, vomiting, and less commonly, diarrhea.

When to talk to a doctor 

Postinor-2 side effects
Credit: Canva

While most side effects of Postinor 2 on menstruation are temporary and resolve on their own, there are certain situations where it’s important to seek medical advice promptly. Here are some circumstances in which you should talk to a doctor:

1. Severe or Persistent Symptoms:

If you experience severe or persistent symptoms, such as heavy or prolonged bleeding, severe menstrual cramps, persistent breast tenderness, or persistent nausea and vomiting after taking Postinor 2, it’s important to contact your healthcare provider promptly.

These symptoms may require further evaluation and management.

2. Concerns about Pregnancy: 

Postinor-2 is not 100% effective, and there is a possibility of pregnancy even after taking the medication.

So, if you suspect that you may be pregnant despite taking the medication, it’s important to contact your healthcare provider for further evaluation. Your healthcare provider will perform a pregnancy test and provide appropriate guidance based on the results.

3. Persistent Changes in Menstrual Flow:

If you notice persistent changes in your menstrual flow, even after a few menstrual cycles, it’s important to contact a doctor for evaluation.

These changes may require further investigation to determine the underlying cause and appropriate management.

4. General Concerns or Questions:

If you have any general concerns or questions about the side effects of Postinor 2 on menstruation or its overall impact on your health, it’s always advisable to speak with a certified gynecologist.

He/she can provide accurate information, address your concerns, and provide appropriate guidance based on your individual health needs. 

Conclusion

Postinor 2 is an important option for emergency contraception, but like any medication, it may have potential side effects, including its impact on menstruation.

Changes in menstrual flow and timing, menstrual cramps, breast tenderness, nausea, vomiting, and headaches are some of the common side effects that may occur after taking Postinor 2.

It’s crucial to monitor for any changes or symptoms after taking Postinor 2 and seek medical advice if needed. Your healthcare provider can provide personalized guidance and management options based on your individual health history and needs.

It’s also important to remember that Postinor 2 should not be used as a regular form of contraception, but only as an emergency option when other contraceptive methods have failed or were not used. 

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Dr. Temitope Oyetunji is a family physician in training with years of clinical practice experience. She is passionate about using clear, understandable written and video content to disseminate health information.

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