絨毛膜促性腺激素 (HCG)
Chorionic Gonadotropin (HCG)
Human Chorionic Gonadotropin
別名: Chorulon · Chorionad · P.G. 600 · Profasi · Choron 10 · Gonic · Novarel · Pregnyl · human chorionic gonadotropin · hCG · LH 500 · chorionic gonadotrophin · dynatropin · pregnancy-urine hormone · PU
由 VetSheet 獸醫團隊審訂更新於 2026年4月5日本內容以實證獸醫文獻為本
劑量為持牌獸醫專業人員的臨床參考。請務必對照最新藥品說明書及個別病患確認。
各物種劑量
🌎 NA — North America🌍 EU — Europe
狗
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| Cryptorchidism | 500 Units injected twice weekly | IM/SC | twice weekly | 4-6 weeks | 🌎 NA |
| HCG Challenge test (Male dogs or females with suspected sexual differentiation disorder) | 44 micrograms/kg | IM | once | — | 🌎 NA |
| HCG Challenge test (Female dogs to diagnose functional ovarian tissue) | 100-1000 Units | IM | once | — | 🌎 NA |
| To produce luteinization of a persistent follicular cyst | 500 Units | IM | repeat in 48 hours | — | 🌎 NA |
| Infertile bitches cycling normally with low progesterone due to lack of corpus luteum formation | 500 Units | SC | once | — | 🌎 NA |
| Male infertility secondary to low testosterone, LH and FSH | 500 Units | SC | twice weekly | 4 weeks | 🌎 NA |
- HCG Challenge test (Male dogs or females with suspected sexual differentiation disorder): Take sample for resting testosterone level. Administer HCG and take a 4 hour post sample.
- HCG Challenge test (Female dogs to diagnose functional ovarian tissue): Give during apparent estrous episode. Measure progesterone level in 5-7 days. >1 ng/mL indicates functional tissue.
- To produce luteinization of a persistent follicular cyst: If effective, will convert from proestrus to estrus in 1-2 days and sexual behavior should stop within 2 weeks.
- Infertile bitches cycling normally with low progesterone due to lack of corpus luteum formation: Give on days 10-11 of heat cycle or when vaginal smear indicates breeding readiness. Breed 2 days after administration.
- Male infertility secondary to low testosterone, LH and FSH: Add PMSG 20 Units/kg SC 3 times weekly. Continue for 3 months. Once spermatogenesis ensues, may continue with HCG only.
貓
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| HCG Challenge test (Male cats or females with suspected sexual differentiation disorder) | 250 micrograms | IM | once | — | 🌎 NA |
| HCG Challenge test (Queens to diagnose functional ovarian tissue) | 50-100 Units | IM | once | — | 🌎 NA |
| Infertility, reduced libido, testis descent in male cats | 50-100 Units | IM/SC | repeated if necessary | — | 🌎 NA |
| Infertility in queens due to confirmed ovulation failure | 100-500 Units | IM | once | — | 🌎 NA |
| To induce ovulation in anestrus queens | 250 micrograms | IM | once daily for 2 days | 2 days | 🌎 NA |
| After artificial insemination | 50-75 Units | IM | immediately after insemination; repeat in 24 hours | 24 hours | 🌎 NA |
- HCG Challenge test (Male cats or females with suspected sexual differentiation disorder): Take sample for resting testosterone level. Administer HCG and take a 4 hour post sample.
- HCG Challenge test (Queens to diagnose functional ovarian tissue): Give during apparent estrous episode. Measure progesterone level in 5-7 days. >1 ng/mL indicates functional tissue.
- To induce ovulation in anestrus queens: Give FSH-P 2 mg IM daily until estrus is observed. Give HCG on first and second day of estrus.
小型哺乳類
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| Cystic ovaries (Guinea pigs) | 1000 Units/animal | IM | repeat in 7-10 days | — | 🌎 NA |
雪貂
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| Estrus management | 100 Units | IM | repeat in 1 week as necessary | — | 🌎 NA |
- Estrus management: Most effective 14 days after onset of estrus.
鳥
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| To reduce feather plucking (especially in female birds) | 500-1,000 Units/kg | IM | once | — | 🌎 NA |
- To reduce feather plucking (especially in female birds): Dosage is empirical. If no response in 3 days, repeat. If reduces feather plucking, will need to repeat after 4-6 weeks. Repeated usage reduces time between treatments.
馬
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| Cryptorchidism (Foals) | 1000 Units | IM/SC | twice weekly | 4-6 weeks | 🌎 NA |
| To induce ovulation in early estrus (dominant follicle >35 mm) | 2000-3000 Units | IV | once | — | 🌎 NA |
| Treatment of persistent follicles during the early transition period | 1000-5000 Units | IM/IV | once | — | 🌎 NA |
| To hasten ovulation and reduce variability of estrus after prostaglandin synchronization | 1500-3300 Units | IM/IV | once | — | 🌎 NA |
- Cryptorchidism (Foals): Note: Many clinicians believe that medical treatment is unwarranted and that surgery should be performed.
- To induce ovulation in early estrus (dominant follicle >35 mm): Preferable to treat mare 6 hours before mating.
- Treatment of persistent follicles during the early transition period: Results are variable.
- To hasten ovulation and reduce variability of estrus after prostaglandin synchronization: Give 5-6 days after the second prostaglandin treatment or on the first or second day of estrus.
牛
| 適應症 | 劑量 | 途徑 | 頻次 | 療程 | 地區 |
|---|---|---|---|---|---|
| Treatment of ovarian cysts | 10,000 Units deep IM or 2500-5000 Units IV. Alternatively, 500-2500 Units injected directly into the follicle. | IM/IV/Intrafollicular | once | — | 🌎 NA |
- Treatment of ovarian cysts: May repeat in 14 days if animal's behavior or physical exam indicates a need for retreatment.
劑量為持牌獸醫專業人員的臨床參考。請務必對照最新藥品說明書及個別病患確認。
概覽
HCG 是一種從孕婦尿液中提取的多肽激素，主要模擬黃體生成素 (LH) 的作用，並具有部分濾泡刺激素 (FSH) 的活性。在獸醫學中，廣泛應用於多種動物的繁殖障礙治療，如牛的囊腫性卵巢、隱睪症，以及用於 HCG 刺激試驗以評估性腺功能。
作用機制
HCG is a glycoprotein that primarily mimics the action of luteinizing hormone (LH), with minor follicle-stimulating hormone (FSH)-like activity.
- In Males: Binds to LH receptors on testicular interstitial (Leydig) cells → stimulates differentiation and androgen (testosterone) production → promotes testicular descent and spermatogenesis.
- In Females: Binds to LH receptors on the ovary → stimulates the corpus luteum to produce progesterone → triggers ovulation of mature follicles. In bitches, it also induces estrogen secretion.
安全性與警告
禁忌症
- Androgen-dependent neoplasias (e.g., prostatic carcinoma)
- Precocious puberty
- Known hypersensitivity to HCG
- Pregnancy (FDA Category X in humans, unless specifically indicated for reproductive management)
不良反應
- Hypersensitivity reactions / Anaphylaxis
- Pain at the injection site
- Antibody production leading to diminished efficacy (with repeated use)
- Abortion in mares if given prior to the 35th day of pregnancy
- Gynecomastia, headache, depression, irritability, and edema (reported in humans)
注意事項
Warning: Antibody production to this hormone has been reported after repetitive use, resulting in diminished effect.
- Pregnancy: FDA Category X in humans (risk of use clearly outweighs any possible benefit). May cause abortion in mares prior to the 35th day of pregnancy due to increased estrogen levels.
- Administration: Must be given parenterally; it is destroyed in the GI tract if given orally.
監測
- Testosterone levels (for HCG challenge test in males)
- Progesterone levels (for HCG challenge test in females)
- Resolution of clinical signs (e.g., cessation of estrus behavior, resolution of cystic ovaries)
- Signs of hypersensitivity or anaphylaxis post-injection
藥物動力學
吸收
Destroyed in the GI tract after oral administration; must be given parenterally. After IM injection, peak plasma levels occur in about 6 hours.
分佈
Distributed primarily to the ovaries in females and to the testes in males. Some may also be distributed to the proximal tubules in the renal cortex.
排除
Eliminated from the blood in a biphasic manner. The initial elimination half-life is about 11 hours and the terminal half-life is approximately 23 hours.
過量
No overdosage cases have been reported with HCG in veterinary medicine.
可用產品
劑型
- Powder for injection (lyophilized)
獸醫用
- Chorionic Gonadotropin (HCG) Injection: 10,000 Units per vial (Chorulon, Chorionad)
- Chorionic Gonadotropin freeze-dried powder: P.G. 600 (contains PMSG 400 Units + hCG 200 Units, or PMSG 2,000 Units + hCG 1,000 Units)
人用標示
- Chorionic Gonadotropin Powder for Injection: 5,000 Units/vial, 10,000 Units/vial, 20,000 Units/vial (Profasi, Choron 10, Gonic, Novarel, Pregnyl, generic)
各地核准狀態
停藥期: cattle meat 0 days · cattle milk 0 days
POM-V classification.
停藥期: cattle meat 0 days · cattle milk 0 days
POM-V (Prescription Only Medicine - Veterinarian).
暫無法規資料: 🇺🇸 US · 🇭🇰 HK · 🇹🇼 TW · 🇯🇵 JP · 🇰🇷 KR · 🇦🇺 AU
儲存與穩定性
Store powder at room temperature (15-30°C) and protect from light. After reconstitution, the solution is stable for 30-90 days when stored at 2-15°C (refrigerated). However, veterinary labels (Chorulon, P.G. 600) state to use the vial immediately after reconstituting.
飼主須知
本藥物僅能透過注射給藥。注射部位可能會出現疼痛。請密切觀察寵物是否有過敏反應（如呼吸急促、面部腫脹）。重複多次使用可能會因產生抗體而降低療效。
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