Headache, mild stomach pain/bloating, redness/pain at the injection site, breast tenderness, or dizziness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if any of these unlikely but serious side effects occur: flu-like symptoms (e.g., fever, chills, joint pain, muscle ache, tiredness).
Seek immediate medical attention if any of these rare but very serious side effects occur: weakness on one side of the body, slurred speech, sudden vision changes, sudden severe headache, pain/swelling of the calf muscles, chest pain, shortness of breath.
This medication may cause a condition known as Ovarian Hyperstimulation Syndrome (OHSS). This condition may occur during therapy or after treatment has been stopped. Rarely, serious OHSS causes fluid to suddenly build up in the stomach, chest, and heart area. Seek immediate medical attention if you develop the following side effects: severe pain/swelling in the lower abdominal (pelvic) area, nausea/vomiting, sudden/rapid weight gain, decreased urination.
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.