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Follicle stimulating hormone / ganirelix Side Effects

Applies to follicle stimulating hormone / ganirelix: subcutaneous kit

Ovarian hyperstimulation syndrome (OHSS) is an uncommon complication of treatment with follicle stimulating hormone, ganirelix, and other fertility medications. Symptoms of OHSS include severe pelvic pain, swelling of the hands or legs, abdominal pain and swelling, shortness of breath, weight gain, low urine output, diarrhea, severe nausea, and vomiting. OHSS can be fatal. Notify your doctor immediately or seek emergency medical attention if you develop any of these symptoms.

Stop using follicle stimulating hormone and ganirelix and seek emergency medical attention or notify your doctor immediately if you experience any of the following serious side effects:

  • an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);

  • pain, warmth, redness, numbness, or tingling in an arm or leg (which may indicate a blood clot);

  • confusion, severe dizziness, or severe headache (which may indicate a blood clot in the head); or

  • difficulty breathing.

Other side effects may also occur. Notify your doctor if you experience

  • abdominal or pelvic pain, tenderness, pressure, or swelling (potential symptoms of ovarian enlargement);

  • nausea, vomiting, diarrhea, or flatulence (gas);

  • fever or chills;

  • headache;

  • dizziness;

  • rapid pulse or heart rate;

  • muscle or joint weakness or aching;

  • breast tenderness;

  • spotting or menstrual changes;

  • pain, swelling, or irritation at the injection site; or

  • dry skin, a rash, or hair loss.

Treatment with follicle stimulating hormone and ganirelix increases the likelihood of multiple births. Multiple births carry additional risk both for the mother and for fetuses. Discuss the risk of multiple births with your healthcare provider.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Some side effects of follicle stimulating hormone / ganirelix may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

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