Oral Contraceptives

Facts About Oral Contraceptives

  • Birth control pills are frequently used and effective contraception
  • They prevent ovulation, makes the cervical mucus becomes less susceptible to a fertilized egg and changes the mucus in the cervix, which then become less permeable to sperm
  • Pros: Simple to use, small and regular bleeding and reduces menstrual pain
  • Disadvantages: Does not protect against sexually transmitted diseases and causes side effects as other hormonal contraceptives. In particular, there is an increased risk of blood clots, which are higher for some of the new types of pill. 2nd generation contraceptive pills have the least risk

mechanism of action

  • prevents ovulation
  • The endometrium is less susceptible to a fertilized egg
  • Mucus in the cervix becomes less permeable to sperm


  • Is very safe when used properly
  • Is simple to use
  • Provides regular and relatively small bleedings
  • Will usually reduce or eliminate menstrual pain
  • Can be used to delay menstruation
  • Prolonged use reduced the risk of developing cancer of the ovaries and uterus


  • Does not protect against STDs
  • May cause low libido
  • May cause mood swings
  • can worsen migraine. Some have increased headaches the first few months after starting, but the headache disappears in most people. It helps rare to switch to another type of pill
  • There is no evidence of increased risk of breast cancer after use of oral contraceptives in women. It is uncertain whether women with genetically increased risk of breast cancer (Braca positive) are more susceptible to oral contraceptives
  • The pill increases the risk of thrombosis – especially in the calves:
    • The pill should not be used in women who have had blood clots in the lay or lungs
    • The pill should not be used if confirmed hereditary predisposition to thrombosis or suspected hereditary predisposition to thrombosis
  • The risk of thrombosis is higher for some of the new types of birth control pills (2nd generation contraceptive pills have least risk)
  • Because of the risk of blood clot recommended the pill generally to women who smoke and are over 35 years
  • Before major surgery must cease Pill 2 weeks prior to surgery
    • For smaller operations lasting less than 30 min., And how quickly are out of bed after surgery, you do not pause with the pill
  • Ordinary contraceptive pills, containing both estrogen and progestin can during breastfeeding cause temporary reduction of milk production. After a few days, the amount of milk again, and birth control pills can be used during breastfeeding


  • Weight gain is not documented as a side effect of some of the oral contraceptives that are on the market. But some girls think they take a few kilos
  • Some girls get bigger breasts using the pill because of østrogenstimuleringen
  • Contraceptive pills should be taken at a fairly regular time once a day. If you miss a pill, for example. at night, it can be taken the next morning. It takes more than 36 hours between the pillars should be supplemented by other contraceptives
  • By vomiting or diarrhea right after taking the pill, can be taken of the medicine from the intestine become incomplete, and thus ovulation get started. In these situations, you should continue taking the pills, but make sure by using condom in addition to the pills until your next period
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