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Post coital contraception


  • ‘Morning-after pill’

Either

  • Two doses each of 100 micrograms of ethinyloestradiol and 500 micrograms of levenorgestrel given 12 hours apart within 72 hours of unprotected intercourse
    • 0-3% failure rate
    • side effects include nausea and vomiting
  • A single dose of 600 micrograms of mifepristone a progesterone antagonist is also highly effective