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Is Merina effective?

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If so, how well does it work with out other contraception methods? Just looking for something that is effective and that I don't have to remember taking a pill. Is there any allergic reactions with the Merina? If I spelled it wrong sorry bad speller lol.


Mirena I have found, has been almost a heaven sent. I started to use it a little more than a year ago, first basically as a protection for when I went overseas to Iraq for a deployment, in case of rape, and also because of my relationship with my fiance so as to avoid pregnancy before we are both ready.

So far I haven't had any real problems with it except one, which may not even be caused by Mirena. I lost my period within three months and only occasionally see some brown spotting (uterus tissue rather than the bright blood that you see at a period) maybe every few months, but that doesn't last more than a day nor do I even need to wear a liner, except to save me some grief of buying new underwear.

It was a bit painful when it was placed, but that is also because I did not listen to doctor's advise. They will advise you to take a pain reliever, such as a midol or tylonol, because after insertion there will be some bad cramping. Think of it as simply a bad case of period cramps that lasts for about 2 hours. After that, once the thing starts working (should not have unprotected sex until the end of that cycle, just to ensure that there is not released egg...just like the pill) cramps and periods on average get lighter and in about 30% of women stop completely for the next 5 years.

The one issue that is may have caused in me, but this is only speculation and not from anything that I have read about it, is possibly ovarian cysts. Ovarian cysts are actually quite common in women and we do not even know about it alot of the time. What occurs naturally is every month a follicle matures to help get the egg to mature and release into the fallopian tubes. Normally that follicle is supposed to dissolve again, but sometimes is will fill with fluid and solidify, forming a cyst. If you have a pain on one side of you abs during your periods, this may be an indication of a cyst. Most often they will dissolve on their own a few months down the line without the worst for wear. For me however, during sex one night, I had a cramping feeling start that spread to full agony. What had happened was that an ovarian cyst on my right ovary erupted. When one ruptures, most of the time they dissolve after a couple hours and you can go on with your life. I was one of the "lucky" ones that needed surgery.

Again....I do not know if this was caused by Mirena and no readings that I have seen, have stated that Mirena causes ovarian cysts....but I am putting it out there so that it is a question that you can ask your doctor.

As to how it works. It works much the same way as the pill. It prevents the release of an egg, thickens the lining of the cervix to prevent sperm meeting egg, and it alters the lining of the uterus, as a back-up method should the other two methods for some reason fail. The difference between the pill and other monthly contraceptives such as the patch or the nuva ring, is that there is no break in hormones in your body, thus no building and shedding of the uterus every month, such as the week when you take the placebo for the pills.

Another good thing is that since it is a continuous stream of hormone in your body, there is no flux of hormone such as with the pill, where in the morning when you first take it, it is a huge dose of hormone that tapers off in the next 24 hours necessitating that you take the next days' pill at the same time, while the hormone that prevents egg release is still in your body from yesterday. This leads more to pregnancy with the pill, since life happens and should a woman forget the pill on the magical day, the egg could be released in that window and thus fertilized and thus implanted in the uterus wall.

Hope that helps.