{"id":583,"date":"2023-01-26T15:10:39","date_gmt":"2023-01-26T13:10:39","guid":{"rendered":"https:\/\/www.vetdrugslist.com\/?p=583"},"modified":"2025-05-17T02:04:57","modified_gmt":"2025-05-16T23:04:57","slug":"chorionic-gonadotrophin-dose","status":"publish","type":"post","link":"https:\/\/www.vet-ebooks.com\/vetdrugslist\/chorionic-gonadotrophin-dose\/","title":{"rendered":"Chorionic Gonadotrophin"},"content":{"rendered":"
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Chorionic Gonadotrophin for Dogs, Cats, and Other Animal Species: Dosage, Uses, and Side Effects Guide<\/p>\n

\"Chorionic<\/div>\n
<\/i>Drug Dosages<\/a>
\n<\/i>Drug Uses<\/a><\/div>\n\n

<\/p>\n

<\/i> Overview<\/h2>\n

Chorionic gonadotrophin, commonly called human chorionic gonadotropin (hCG)<\/strong>, is a hormone that plays an important role in animal reproduction. In veterinary medicine, it\u2019s used to treat a variety of fertility issues in different species \u2014 including dogs, cats, horses, cattle, pigs, goats, sheep, birds, and even fish<\/strong>.<\/p>\n

This hormone works by mimicking luteinizing hormone (LH), helping to trigger ovulation in females or increase testosterone production in males. Depending on the species, it\u2019s used to induce estrus, manage cystic ovaries, improve sperm quality, or assist with breeding programs. It\u2019s also helpful in certain diagnostic tests to check for reproductive tissues in animals that have been spayed or neutered.<\/p>\n

Since hCG is a human-derived hormone, it\u2019s given by injection and handled with care. While most animals tolerate it well, occasional allergic reactions can happen, so it\u2019s important to monitor animals closely during treatment.<\/p>\n

\n\"Vet<\/a><\/div>\n\n<\/p>\n

<\/i> Uses of Chorionic Gonadotrophin (hCG)<\/h2>\n

Chorionic gonadotrophin (hCG) is widely used across multiple animal species to support reproductive health and fertility. Its effects are similar to luteinizing hormone (LH), helping with ovulation, hormone production, and breeding success.<\/p>\n

    \n
  • Dogs and Cats:<\/strong> In dogs, hCG is used to manage delayed ovulation and improve sperm quality in males with low libido. In cats, it can be used off-label to induce ovulation or help diagnose reproductive tissue in spayed animals.<\/li>\n
  • Horses:<\/strong> In mares, hCG is used to trigger ovulation during estrus, especially when managing breeding schedules. It\u2019s also used in stallions to support testicular development and hormone function.<\/li>\n
  • Cattle:<\/strong> hCG is approved for treating cystic ovaries in cows and is sometimes used to induce ovulation in synchronized breeding programs.<\/li>\n
  • Pigs (Swine):<\/strong> In prepubertal gilts and sows with delayed estrus, hCG (as part of PG 600\u00ae) helps induce fertile estrus and improve breeding outcomes.<\/li>\n
  • Goats and Sheep:<\/strong> Used off-label to induce estrus and support breeding management, particularly when combined with other reproductive hormones.<\/li>\n
  • Birds:<\/strong> Occasionally used to reduce feather plucking behaviors, especially in female birds. Results vary and repeated treatments may be necessary.<\/li>\n
  • Fish (Finfish):<\/strong> In aquaculture, hCG is approved for use in brood fish to improve spawning and breeding success in both males and females.<\/li>\n<\/ul>\n

    <\/p>\n

    <\/i> Dosage of Chorionic Gonadotrophin (hCG)<\/h2>\n

    The dosage of hCG varies depending on the species and the condition being treated. It is typically given as an intramuscular (IM) or intravenous (IV) injection. Always follow veterinary guidance for proper dosing and monitoring.<\/p>\n

    Dogs:<\/strong><\/h3>\n
      \n
    • Delayed ovulation:<\/strong> 22 IU\/kg IM every 24\u201348 hours, or a single dose of 44 IU\/kg IM. Mate during behavioral estrus.<\/li>\n
    • Low libido in males:<\/strong> 100\u2013500 IU\/dog IM twice weekly for up to 6 weeks to improve semen quality.<\/li>\n<\/ul>\n

      Cats:<\/strong><\/h3>\n
        \n
      • Off-label use:<\/strong> Similar dosing to dogs. May be used to induce ovulation or test for residual ovarian tissue in spayed queens. Always consult your vet before use in cats.<\/li>\n<\/ul>\n

        Horses:<\/strong><\/h3>\n
          \n
        • Induce ovulation in mares:<\/strong> 1500\u20133000 IU IV during estrus (when follicle >30\u201335 mm). Ovulation typically occurs within 48 hours.<\/li>\n
        • Cryptorchid stallions (under 2 years):<\/strong> 2500 IU IM twice weekly for 4 weeks to encourage testicular descent.<\/li>\n<\/ul>\n

          Cattle:<\/strong><\/h3>\n
            \n
          • Ovarian cysts (approved use):<\/strong> 10,000 IU IM (entire vial). May repeat in 14 days if needed.<\/li>\n
          • Ovulation induction:<\/strong> 1500\u20132000 IU IM during synchronization protocols (off-label use).<\/li>\n<\/ul>\n

            Pigs (Swine):<\/strong><\/h3>\n
              \n
            • Induce fertile estrus (labeled use):<\/strong> 5 mL PG 600\u00ae IM in prepubertal gilts or sows post-weaning during delayed estrus.<\/li>\n<\/ul>\n

              Goats & Sheep:<\/strong><\/h3>\n
                \n
              • Induce estrus (off-label):<\/strong> 200\u2013800 IU IM or subcutaneously (SC) in the neck region, depending on species and size.<\/li>\n<\/ul>\n

                Birds:<\/strong><\/h3>\n
                  \n
                • Feather plucking (off-label):<\/strong> 500\u20131000 IU\/kg IM. May repeat after 3 days if no response. Treatment intervals reduce over time with repeated use.<\/li>\n<\/ul>\n

                  Fish (Finfish):<\/strong><\/h3>\n
                    \n
                  • Spawning aid (approved use):<\/strong> IM injection near the dorsal fin. Dose depends on species and weight. Refer to product label for exact guidelines.<\/li>\n<\/ul>\n
                    \n\ud83d\udca1 Pro Tip:<\/strong> Always reconstitute and administer hCG as directed. Overdosing has not been reported, but follow-up monitoring and veterinary consultation are essential to avoid side effects or resistance.\n<\/div>\n
                    \n \n \n