ganirelix (generic name)

Antagon (brand name)

It is used to regulate hormone responses in women undergoing treatment for infertility.
(ga ni REL iks)
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What is this medicine?

GANIRELIX (ga ni REL iks) is used to regulate hormone responses in women undergoing treatment for infertility.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • kidney disease
  • liver disease
  • an unusual or allergic reaction to ganirelix, mannitol, latex, other medicines, foods, dyes, or preservatives
  • pregnant
  • breast-feeding

How should I use this medicine?

This medicine is for injection under the skin. It is usually given by a health care professional in a hospital or clinic setting.

If you get this medicine at home, you will be taught how to prepare and give this medicine. Use exactly as directed. Take your medicine at regular intervals. Do not take it more often than directed.

It is important that you put your used needles and syringes in a special sharps container. Do not put them in a trash can. If you do not have a sharps container, call your pharmacist or healthcare provider to get one.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

Try not to miss a dose. If you do miss a dose, call your doctor or health care professional for advice.

What may interact with this medicine?

Do not take this medicine with any of the following medications:
  • chasteberry

This medicine may also interact with the following medications:

  • herbal or dietary supplements, like black cohosh or DHEA

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular checks on your progress and discuss any issues before you start taking this medicine.

Your doctor or health care professional will need to monitor your hormone levels in your blood and use an ultrasound to check your response to treatment. Try to keep any appointments for testing. The timing of these tests in relation to taking your medication may be important.

Stop taking this medicine at once and contact your doctor or health care professional if you think you are pregnant.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • breathing problems
  • nausea and vomiting along with severe abdominal pain
  • pelvic pain or bloating

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • headache
  • hot flashes (flushing of skin, increased sweating)
  • itching, redness, or mild pain at the site of the medication injection
  • mild nausea

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from direct light and heat. Throw away any unused medicine after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Last Updated: May 18, 2009
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