Oral contraceptives come in a variety of formulations. The main division is between combined oral contraceptive pills, containing both estrogen and synthetic progestogens (strictly progestins, the term used in the United States, but the former term is used in the United Kingdom), and progestogen only pills (mini-pills). Combined oral contraceptive pills also come in varying types, including varying doses of estrogen, and whether the dose of estrogen or progestogen changes from week to week.

Combination pills usually work by preventing a woman’s ovaries from releasing eggs (ovulation). They also thicken the cervical mucus, which keeps sperm from joining with an egg. The hormones in combination and progestogen-only pills also thin the lining of the uterus. This could prevent pregnancy by interfering with implantation of a blastocyst.

Source: http://en.wikipedia.org/wiki/Kariva

Kariva Discussions

  1. link Migranesally88
    Kariva miracle drug, migranes, irregular cycles, dependancy, mircette
    I have been on Kariva (generic for Mircette) birth control for about 6 years now, I started when I was a junior in high school because of all the symp - 91% more...
    Migranesally88- over a year ago - 1 Reply - in Kariva
  2. link Gspivey76
    Kariva and pregnancy
    I have been on Kariva for about a year and was getting two full periods on schedule, for month most of this time. In my infinite wisdom, I decided to - 82% more...
    Gspivey76- over a year ago - in Kariva
  3. link Emartin12079
    gluten free?
    what are the inactive ingredients of kariva?
    Emartin12079- over a year ago - in Kariva
  4. link Ldp278
    Kariva
    After a week and a half, I am moody, anxious, irritable. Going off of it today!
    Ldp278- over a year ago - in Kariva
  5. link Jhanon
    Kariva withdrawal symptoms, 6 years, kariva
    I have been taking it for three years and I am starting to experience more side effects. I am going to quit taking it.
    Jhanon- over a year ago - 1 Reply - in Kariva
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