HCG 10,000 IU: Research and Clinical Profile

HCG 10000IU:: HCG (Human Chorionic Gonadotropin) is a polypeptide hormone produced by the human placenta, composed of an alpha and a beta subunit. The alpha subunit is essentially identical to the alpha subunits of human pituitary gonadotropins like LH and FSH, while the beta subunits differ in amino acid sequence . The 10,000 IU strength is a standard research and clinical dosage for this hormone.

What is HCG 10,000 IU?

HCG 10,000 IU is a sterile lyophilized powder provided in a multiple-dose vial, typically accompanied by Bacteriostatic Water for Injection for reconstitution . It is a water-soluble glycoprotein derived from human pregnancy urine and has been approved for medical use since 1974 .

Key Identifiers:

• USP Unit Strength: 10,000 USP units per vial

• Molecular Weight: ~37.9 kDa 

• Form: Lyophilized powder

• Packaging: Vial with 10 mL diluent (Bacteriostatic Water for Injection)

• Excipients: Mannitol (100 mg), Dibasic Sodium Phosphate, Monobasic Sodium Phosphate, benzyl alcohol 0.9% 

Mechanism of Action

HCG’s action is virtually identical to pituitary luteinizing hormone (LH), though it also has a small degree of FSH-like activity .

Key Functions:

• Stimulates gonadal steroid hormone production by stimulating Leydig cells (testis) to produce androgens and the corpus luteum (ovary) to produce progesterone 

• Androgen stimulation in males leads to development of secondary sex characteristics and may stimulate testicular descent when no anatomical obstruction is present 

• In females, HCG can substitute for the mid-cycle LH surge that triggers ovulation 

• During pregnancy, HCG maintains the corpus luteum, supporting continued secretion of estrogen and progesterone and preventing menstruation 

Important Note: HCG has no known effect on fat mobilization, appetite, sense of hunger, or body fat distribution . The FDA has explicitly stated that HCG has not been demonstrated to be effective as adjunctive therapy in obesity treatment.

Indications and Clinical Applications

Approved Indications

1. Prepubertal Cryptorchidism (not due to anatomical obstruction):

• HCG is used to induce testicular descent. Therapy is usually instituted between ages four and nine .

• While descent can be permanent in some cases, it is often temporary. HCG may help predict whether orchiopexy will be needed .

2. Hypogonadotropic Hypogonadism in Males:

• Selected cases of male hypogonadism secondary to pituitary deficiency .

3. Induction of Ovulation:

• For anovulatory, infertile women who have been pretreated with human menotropins. HCG is administered one day following the last dose of menotropins .(HCG 10000IU)

Dosing Information

Dosage regimens depend on the indication, age, weight, and physician preference . The 10,000 IU vial must be reconstituted for intramuscular use only and can be diluted to different concentrations based on the regimen .

Standard Dosing Regimens

Reconstitution Options

Reconstitution and Storage

Reconstitution:

• Use accompanying Bacteriostatic Water for Injection (contains 0.9% benzyl alcohol) 

• Remove flip caps and wipe vial tops with alcohol pad 

• Reconstitute with 1 mL for a single-use high concentration, or 10 mL for multi-dose use 

• Do not shake 

Storage:

• Lyophilized powder: Store at room temperature 20°C to 25°C (68°F to 77°F) 

• After Reconstitution: Refrigerate between 2°C to 8°C (36°F to 46°F) 

• Discard after: Must be discarded 60 days after reconstitution 

• Do not freeze 

Regulatory and Safety Considerations

FDA Status

• HCG is a FDA-approved prescription drug 

• It is a Human Prescription Drug regulated under NDC Code(s) 

• Available as a generic from manufacturers like Fresenius Kabi and Ferring Pharmaceuticals 

Obesity Use Warning

The FDA prescribing information explicitly states:

“HCG HAS NOT BEEN DEMONSTRATED TO BE EFFECTIVE ADJUNCTIVE THERAPY IN THE TREATMENT OF OBESITY. THERE IS NO SUBSTANTIAL EVIDENCE THAT IT INCREASES WEIGHT LOSS BEYOND THAT RESULTING FROM CALORIC RESTRICTION, THAT IT CAUSES A MORE ATTRACTIVE OR ‘NORMAL’ DISTRIBUTION OF FAT, OR THAT IT DECREASES THE HUNGER AND DISCOMFORT ASSOCIATED WITH CALORIE-RESTRICTED DIETS.” 

HCG 10,000 IU in Research

For research applications, this 10,000 IU vial is used in:

• In vitro cellular studies

• Oocyte and embryo preparation

• Superovulation in animal models (e.g., CD-1 mice)

• Gonadotropin preparation research 

Frequently Asked Questions

What is HCG?

HCG is a polypeptide hormone derived from human pregnancy urine that mimics the action of pituitary LH, stimulating gonadal steroid production and ovulation .

Is HCG FDA-approved for weight loss?

No. The FDA prescribing information explicitly states that HCG has not been demonstrated to be effective for obesity treatment and has no effect on appetite, fat mobilization, or body fat distribution .

What are the approved uses of HCG?

HCG is approved for prepubertal cryptorchidism, selected cases of hypogonadotropic hypogonadism in males, and ovulation induction in infertile women pretreated with menotropins .

How should HCG 10,000 IU be reconstituted?

Reconstitute with the accompanying Bacteriostatic Water for Injection. For single-use high concentration, dilute with 1 mL. For multiple-dose use, dilute with 10 mL. Do not shake .

What is the expiration date after reconstitution?

Reconstituted HCG must be refrigerated (2-8°C) and discarded after 60 days. Do not freeze .

What is the recommended dosage for ovulation induction?

5,000 to 10,000 USP Units are administered one day following the last dose of menotropins. A dosage of 10,000 USP Units is recommended in the menotropins labeling .

Can HCG be used in research?

Yes. HCG is widely used in research for in vitro studies, embryo preparation, superovulation in animal models, and gonadotropin research .