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Factrel Injection Solution

Factrel Injection Solution

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Factrel® Injection gonadorelin injection is approved for use with Lutalyse® to synchronize estrous cycles to allow for fixed-time artificial insemination (FTAI) in lactating dairy cows. IT is also indicated for the treatment of ovarian follicular cysts in cattle. When used in this manner, treatment effect is to reduce the number of days to next estrus. This product may improve breeding efficiency and works with a flexible treatment regimen to meet the needs of various individual operations

  • Gonadorelin injection
  • Estrous synchronization in dairy cattle
  • Treatment of ovarian follicular cysts
  • Requires a veterinarian's prescription

Prescription Required


Administer 2 ml intramuscularly; use as directed by your veterinarian.


Store at refrigerator temperature 2° to 8°C (36° to 46°F).

Caution: Because Factrel® Injection is identical to endogenous GnRH such that both are rapidly metabolized without detectable levels in milk or tissue, no withdrawal period is required.

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