| Pharmacy Drug Brand Name: | Antagon Injection® |
| Active Ingredient(s): | ganirelix acetate |
| Strength(s) / Dose(s): | 250 mcg/0.5 ml |
| Delivery / Dosage Form(s): | Injection |
| Company Manufacturer Name: | Organon, Inc. |
| Availability / Prescription: | Prescription only |
| FDA Approval Date *: | July 29, 1999 |
* Approval by the FDA does not necessarily mean that this drug is available for consumers at this time.
What is Antagon?
Antagon is used to inhibit premature ovulation in women undergoing fertility procedures.
Who should not use Antagon?
- Women who have experienced a hypersensitivity reaction to gonadotropin-releasing hormone (GnRH) or any other GnRH-type drug.
- Women who suspect or know they are pregnant.
Special Warnings with Antagon:
- A physician specializing in fertility treatment should prescribe Antagon.
- Before starting treatment with Antagon, pregnancy must be ruled out.
General Precautions with Antagon:
- Patients with hypersensitivity to GnRH should be closely monitored after the first injection.
- The packaging of Antagon contains natural rubber latex that may cause allergic reactions.
- You will need to be examined on a regular basis when using Antagon.
What should I tell my doctor or health care (healthcare) provider?
Tell your doctor if you are pregnant or breast-feeding. Women who are pregnant or breast-feeding should not use Antagon.
What are some possible side effects of Antagon? (This is not a comprehensive list of possible side effects assosciated with Antagon. Your doctor or pharmacist can provide expert advice on the possible side effects of this drug.)
The most frequent side effects of Antagon are:
- Abdominal pain or discomfort
- Fetal death
- Headache