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Buy Antagon Online

A prescription is required for this item.
No generic alternative is available at this time.
BRAND LISTING - Antagon (Ganirelix Acetate)
Dosage Pack Size & Price Qty
250mcg/0.5mL (0.5mL/pre-filled syringe) (CAN)


Antagon Description

NOTE: Temporary price increase due to shortage from international supplier is resulting in our sourcing it at a higher cost from Canada.

If you and your partner have been advised that a fertility treatment plan will improve your chances to become pregnant, you may be introduced to Antagon. This is an injectible gonadotropin-releasing hormone (GnRH) antagonist that reduces the amount of estrogen and other hormones in your body.

Your first injection will be administered by a doctor so you are able to see how it is done and then you can carry out the injections in the comfort of your own home. The testing and procedures you will go through take time and patience, not to mention the emotional and financial burden you face. Your fertility specialist will lay out the plan for you and answer your questions.

Fertility Help to Prevent Premature Ovulation

Antagon prevents premature ovulation by acting on the pituitary gland, which is responsible for producing the hormones that stimulate the growth and development of your eggs and triggers ovulation when the egg is mature. Antagon blocks the effects of gonadotropin-releasing hormone (GnRH), a natural hormone that controls the secretion of the luteinizing hormone (LH) that induces ovulation during your period. This entire action will help stop the premature ovulation that can produce eggs that are unsuitable for fertilization.

Risks for Infertility in Women

The reason for not being able to conceive will be explored before any suggestions or fertility plans are introduced. Age related problems may be that the egg quality has declined in women between the age of 30 and 40. Endometriosis is a major cause of not being able to become pregnant and polycystic ovary syndrome (PCOS) involves small cysts and hormone imbalances that interfere with ovulation. With testing, your fertility specialist will tell you if Antagon is a possible option for conceiving. There is no guarantee that Antagon or any fertilization treatment will work.

Before Administering Antagon

Your doctor may have you undergo a pregnancy test before starting the fertility treatment as there are risks to an unborn baby. Tell your doctor if you are breast feeding as you may need to bottle feed with formula to avoid the chance that Antagon is secreted in your milk. To determine if Antagon is right for you, your doctor should be aware of other medical conditions and allergies you have, especially to latex, and list any OTC and Rx drugs you currently use or take, including herbal remedies and dietary or vitamin supplements.

Antagon Precautions

Follow all directions carefully and do not change your dosage. Keep Antagon and the used needles/syringes out of the reach of children and pets and ask your pharmacist about the proper way to dispose of the used materials. Keep all lab appointments so your doctor can monitor your condition and be aware of any changes.

Possible Side Effects of Antagon

  • Headache
  • Stomach pain
  • Mild vaginal bleeding
  • Redness at the injection site

Drugs Similar to Antagon

The information provided on the website is intended to facilitate awareness about healthcare products and medical conditions generally but it is not a substitute for professional medical attention or advice. You should always speak with a qualified healthcare practitioner before taking any prescription or non-prescription drug.