Any medicine can come with potential side effects but these will vary from person to person.The most common side effects are nausea, abdominal pain or discomfort, vomiting, headache, dizziness, painful period, pelvic pain, breast tenderness, tiredness, mood swings, muscle pain and back pain, but everyone is different.
After taking EllaOne®, most women have a normal period at the expected time. But some may have their period later or earlier than normal. If your period is more than 7 days late or is unusually light or unusually heavy or if you experience symptoms such as abdominal pain, nausea, vomiting or breast pain or if you have any doubt about being pregnant, you should perform a pregnancy test to make sure you are not pregnant.