Side Effects, Health Benefits, and Health Risks

Side Effects (see Managing Any Problems)

Some users report the following:

  • Changes in bleeding patterns including:
    • Slight irregular bleeding for 1–2 days after taking ECPs
    • Monthly bleeding that starts earlier or later than expected

In the week after taking ECPs:

  • Nausea
  • Abdominal pain
  • Fatigue
  • Headaches
  • Breast tenderness
  • Dizziness
  • Vomiting

Known Health Benefits

Known Health Risks   

Help protect against:

  • Risks of pregnancy

None

Women using progestin-only ECP formulations are much less likely to experience nausea and vomiting than women using estrogen and progestin ECP formulations.

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