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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How Long Does Nurstrate Stay In The Body?

Hi, i have been using nurstrate for passed 10 years, i have stopped taking it in march this year. I want to concieve but the thing is i havent had my periods. How long is it going to take for the injection to come out of my system so that i can concieve?
posted on Wed, 21 Jun 2017
Twitter Fri, 28 Jul 2017 Answered on
Twitter Mon, 31 Jul 2017 Last reviewed on
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The norethisterone prevents pregnancy in three ways. It works mainly by preventing the release of an egg from the ovaries (ovulation). In a woman's normal monthly cycle progesterone levels increase following ovulation, and this prevents the release of further eggs. The norethisterone released from the depot contraceptive 'tricks' the body into thinking ovulation has already occured, and this prevents normal ovulation from happening.

Towards the end of the eight weeks that the contraception lasts for, the norethisterone mainly works by its effects on cervical mucus and the lining of the womb. Norethisterone increases the thickness of the natural mucus at the neck of the womb, making it more difficult for sperm to cross from the vagina into the womb. By preventing sperm entering the womb, successful fertilisation of any eggs that are released is less likely. The hormone also changes the quality of the womb lining (endometrium), making it less receptive for any fertilised eggs to implant into.

The contraceptive effect of the injection lasts for eight weeks.
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How Long Does Nurstrate Stay In The Body?

The norethisterone prevents pregnancy in three ways. It works mainly by preventing the release of an egg from the ovaries (ovulation). In a woman s normal monthly cycle progesterone levels increase following ovulation, and this prevents the release of further eggs. The norethisterone released from the depot contraceptive tricks the body into thinking ovulation has already occured, and this prevents normal ovulation from happening. Towards the end of the eight weeks that the contraception lasts for, the norethisterone mainly works by its effects on cervical mucus and the lining of the womb. Norethisterone increases the thickness of the natural mucus at the neck of the womb, making it more difficult for sperm to cross from the vagina into the womb. By preventing sperm entering the womb, successful fertilisation of any eggs that are released is less likely. The hormone also changes the quality of the womb lining (endometrium), making it less receptive for any fertilised eggs to implant into. The contraceptive effect of the injection lasts for eight weeks.