Differences Between Postinor 1 And Postinor 2

These are emergency contraceptive tablets that help to prevent pregnancy in case of unprotected sexual intercourse. Women are advised to take one tablet immediately after any unprotected act of sexual intercourse, up to 4 pills per month. This article shall look at the differences between Postinor 1 and Postinor 2.

Various contraceptive techniques were then created by scientists to prevent pregnancy before a sexual encounter. If it fails, though, there is nothing that can be done. Then there was the introduction of Postinor.

postinor 1

What is Postinor?

Postinor was introduced as a female oral contraception that is taken as soon as you’ve had an unprotected sexual act. The mechanism of action works by making it impossible for sperm to reach the egg.

It is extremely effective, with a failure rate of less than 1%. This is when it is utilized as directed by a doctor. Furthermore, it is safer and has fewer adverse effects.

Constituent of Postinor

Levonorgestrel, a progesterone-only steroid, is found in Postinor. Gedeon Richter was the first to sell it under the name Postinor. Since then, several brands with varying intensities have been developed. The amount of pills on each sachet determines the name. The strength isn’t taken into account at all. There are now four varieties of Postinor. Postinor 10, Postinor 4, Postinor 2, and Postinor 1. Postinor 1 and Postinor 2 are the most prevalent and also our focus of today.


Postinor 1 and Postinor 2 are emergency contraceptive pills that are widely used by women to prevent unwanted pregnancies after unprotected intercourse or contraceptive failure. Both pills are made by the same manufacturer and contain the same active ingredient, levonorgestrel.

The nature of the consumption requires that women should have these tablets in possession before they are in need of them. Clinical studies have reported that these contraceptive emergency tablets have a failure rate of less than 1% and very few side effects. Side effects include 10-15% vomiting and 20-35% bleeding. These side effects can be seen only if more than 4 pills are used in one month’s time.  However, it is important to consult a doctor or a physician before taking these tablets.

However, there are some differences between Postinor 1 and Postinor 2 that are worth considering.



Here are the key differences between Postinor 1 and Postinor 2:


Postinor 1 contains 1.5mg of levonorgestrel in a single pill, while Postinor 2 contains 0.75mg of levonorgestrel in each of its two pills. This means that Postinor 1 has a higher dose of levonorgestrel than Postinor 2.

The higher dose of Postinor 1 may be associated with a slightly higher risk of side effects, but it also means that it may be more effective in preventing pregnancy than Postinor 2.

Timeframe for Use:

Postinor 1 is intended to be taken as a one-time emergency contraceptive pill within 72 hours (3 days) of unprotected intercourse, while Postinor 2 is designed to be taken as two separate pills, with the first pill taken within 72 hours of unprotected intercourse, and the second pill taken 12 hours after the first pill. This means that Postinor 2 requires a more precise dosing schedule and may be more difficult to use than Postinor 1.


Both pills are effective at preventing unwanted pregnancies when taken as directed, but the efficacy rates differ slightly. According to the World Health Organization (WHO), Postinor 1 has a 95% effectiveness rate, while Postinor 2 has an efficacy rate of 85%. Also, according to a 2018 Cochrane review, it also showed the estimated efficacy of Postinor 1 to be 95% when taken within 72 hours of unprotected intercourse, while Postinor 2 still had an estimated efficacy of 85%.

Side Effects:

The side effects of both pills are generally similar, but some women may experience more severe side effects with Postinor 1 due to its higher dose of levonorgestrel. Common side effects of both pills include nausea, vomiting, abdominal pain, fatigue, headaches, dizziness, and irregular menstrual bleeding/menstrual changes.


Postinor 1 may not be available in all countries or regions. Postinor 1 is available in only some countries, while Postinor 2 is more widely available globally. However, both pills require a prescription in some countries, while in others they may be available over the counter and some pharmacies may not stock emergency contraceptives at all. It is important to check local regulations and speak with a healthcare provider before obtaining emergency contraception.

Manufacturers of Postinor-1 and Postinor-2

The manufacturers of Postinor 1 worldwide include Gedeon Richter, Rex Medical, Farmage SAC, Intensive Care Products Private Ltd., and Chempharos CO.

On the other hand, the manufacturers of Postinor 2 worldwide include Gedeon Richter, Shaheen, Delfi Singapore, Biofarma Natural CMD, Genpharma, Society for Family Health, PT Tunggal Idaman Abdi Jakarta, Rex Medical, Family Planning Association of Srilanka, Aciprosalud C.A., Farmage SRL, Intensive Care products Pvt Ltd., Mekim Ltd and Lab Libra.

I hope you find this article helpful.


About the Author

A Public Speaker and Freelancer who is Interested in Writing articles relating to Personal Development, Love and Marriage.

error: Alert: Content selection is disabled!!