I 135
Cystorelin®
and Fertagyl® (GnRH)


Product Description: These products contain a hormone called gonadorelin diacetate tetrahydrate.

Indications for Use: They are used to treat cystic ovaries and are also used in animals that are not cycling.

Dosage and Administration: A dose of 2 mL per cow given intramuscularly (IM) or intravenously (IV) is recommended for cystic ovaries. For animals that are not cycling, administer a 2 mL dose of GnRH, followed by a 5 mL dose of prostaglandin (Lutalyse) 7 days later. Administer a second dose of GnRH, 1-2 days after the prostaglandin dose.

Storage: These products must be refrigerated prior to use. Each mL contains 50 micrograms of gonadorelin (GnRH).

Milk Withholding: None

Meat Withholding: None

Drug Type: Rx

Manufacturer: Merial and Intervet