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(dinoprost injection)

Most-used prostaglandin in the market1

LUTALYSE® Injection (dinoprost injection) was one of the first natural estrus-synchronization products approved for swine more than 20 years ago, and it remains unsurpassed today. It gives producers more live pigs as the result of greater production efficiencies at and after farrowing.
LUTALYSE is indicated for parturition induction in gilts and sows.

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    • Use with FACTREL for estrous synchronization is consistent with protocols recommended by the Dairy Cattle Reproduction Council
    • A synchronized breeding program with LUTALYSE can:
      • Improve pregnancy rates
      • Reduce time necessary for heat detection
      • Make more efficient use of labor
      • Reduce cull rates
    • An entirely natural prostaglandin
    • No meat or milk withdrawal
    • A product you can trust for performance and safety: LUTALYSE is the most thoroughly researched prostaglandin in the world2
    • Useful therapeutically for controlled breeding
    • Ideal dose size reduces problems if injection-site leakage occurs
  • Effective in animals having a functional corpus luteum in the following applications:

    • In lactating dairy cows, for use with FACTREL for estrous synchronization to allow for FTAI with the following framework:


    Example 1

    Example 2

    Example 3

    Day 0 (Monday)

    1st FACTREL

    1st FACTREL

    1st FACTREL

    Day 7 (the following Monday)

    LUTALYSE (25 mg)

    LUTALYSE (25 mg)

    LUTALYSE (25 mg)

    Day 9 (Wednesday)

    2nd FACTREL + FTAI at 48 hours after LUTALYSE

    2nd FACTREL 48 hours after LUTALYSE

    2nd FACTREL 56 hours after LUTALYSE

    Day 10 (Thursday)


    FTAI 24 hours after 2nd FACTREL

    FTAI 16 hours after FACTREL

    • For estrus synchronization, inject 5 mL LUTALYSE intramuscularly (IM) either once or twice at 10- to 12-day intervals.
    • For treatment of unobserved estrus, inject a 5 mL dose IM. If estrus has not been observed by 80 hours after injection, breed at 80 hours; if the cow returns to estrus, breed at the usual time relative to estrus.
    • For postpartum treatment of pyometra, inject a dose of 5 mL IM at signs of pyometra (presence of a corpus luteum on the ovary and uterine horns containing fluid but not a conceptus based on palpation).

Important Safety Information

Women of childbearing age and persons with respiratory problems should exercise extreme caution when handling LUTALYSE. LUTALYSE is readily absorbed through the skin and may cause abortion and/or bronchiospasms, therefore spillage on the skin should be washed off immediately with soap and water. Aseptic technique should be used to reduce the possibility of post-injection clostridial infections. Do not administer LUTALYSE in pregnant cattle unless cessation of pregnancy is desired. See full Prescribing Information, here. 

IMPORTANT SAFETY INFORMATION FOR FACTREL INJECTION: FACTREL Injection is for use in cattle only. Please see full Prescribing Information, here. 

IMPORTANT SAFETY INFORMATION FOR EAZI-BREED CIDR: Avoid contact with skin by wearing protective gloves when handling EAZI-BREED CIDR inserts. Do not use in heifers of insufficient size or age for breeding or in cattle with abnormal, immature, or infected genital tracts. Do not use inserts more than once.