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Key Highlights

• Generic Name: Human Chorionic Gonadotropin (hCG)
• Common Brand Names: Pregnyl®, Ovitrelle®, Gonasi®
• Drug Class: Gonadotropin Hormone
• Administration: Subcutaneous or intramuscular injection
• Prescription Status: Prescription-only medicine (POM) in the UK
• Primary Medical Uses: Fertility treatment, ovulation induction, and treatment of selected hormone deficiencies

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Medical Uses of hCG

Healthcare professionals may prescribe hCG for approved medical purposes, including:

• Inducing ovulation in women undergoing fertility treatment
• Supporting assisted reproductive technologies (ART), including IVF
• Treating certain forms of male hypogonadism
• Treating delayed puberty in selected adolescent males due to pituitary disorders
• Stimulating testosterone production in men with specific hormone deficiencies

Treatment should always be supervised by a qualified healthcare professional.

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How hCG Works

Human Chorionic Gonadotropin works by mimicking luteinizing hormone (LH), a hormone naturally produced by the pituitary gland.

In women, hCG helps:

• Trigger ovulation
• Support development of the corpus luteum
• Increase progesterone production during early pregnancy

In men, hCG stimulates the testes to:

• Produce testosterone
• Support sperm production in selected patients
• Promote normal reproductive hormone function

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Potential Therapeutic Benefits

When prescribed appropriately, hCG may help:

• Trigger ovulation during fertility treatment
• Improve pregnancy success as part of assisted reproduction
• Restore testosterone production in selected men
• Support fertility in men with hypogonadotropic hypogonadism
• Promote normal sexual development in selected adolescent males

Benefits vary depending on the individual's diagnosis and treatment plan.

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Possible Side Effects

Like all prescription medicines, hCG may cause side effects.

Common Side Effects

• Injection site pain or redness
• Headache
• Fatigue
• Mood changes
• Mild swelling
• Nausea

Serious Side Effects

Seek immediate medical attention if you experience:

• Severe allergic reactions
• Difficulty breathing
• Severe abdominal pain
• Rapid weight gain
• Chest pain
• Severe swelling of the legs
• Symptoms of blood clots

Women receiving fertility treatment should be aware of the risk of Ovarian Hyperstimulation Syndrome (OHSS), a potentially serious complication requiring prompt medical attention.

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Hormonal Effects

Because hCG stimulates hormone production, it may influence:

• Testosterone levels
• Estrogen levels
• Progesterone production
• Sperm production
• Ovulation

Hormone levels are often monitored throughout treatment.

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Fertility Considerations

hCG plays an important role in reproductive medicine.

In women, it may be used to:

• Trigger final egg maturation
• Support ovulation before assisted reproduction

In men, hCG may:

• Stimulate natural testosterone production
• Support sperm production in selected fertility treatments

Treatment protocols vary depending on the medical condition being treated.

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Who Should Not Use hCG?

hCG may not be appropriate for individuals with:

• Allergy to hCG or formulation ingredients
• Certain hormone-sensitive cancers
• Untreated thyroid or adrenal disorders
• Ovarian cysts unrelated to polycystic ovary syndrome (in women)
• Pregnancy when not indicated as part of fertility treatment

Only a healthcare professional can determine whether hCG therapy is appropriate.

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Drug Interactions

Although significant drug interactions are relatively uncommon, patients should inform their healthcare provider about:

• Fertility medications
• Hormone replacement therapies
• Prescription medicines
• Over-the-counter medicines
• Vitamins and herbal supplements

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Monitoring During Treatment

Healthcare providers may monitor:

• Hormone levels
• Testosterone levels (in men)
• Ultrasound examinations during fertility treatment
• Ovarian response (in women)
• Pregnancy testing where appropriate
• Clinical response and adverse effects

Regular monitoring helps improve treatment safety and effectiveness.

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Is hCG Legal in the UK?

Yes. Human Chorionic Gonadotropin (hCG) is a prescription-only medicine in the United Kingdom and is approved for specific medical indications, primarily related to fertility and hormone disorders. It should only be used under the supervision of a qualified healthcare professional.

Although hCG itself is not an anabolic steroid, it is included on the World Anti-Doping Agency (WADA) Prohibited List for use by male athletes because it can stimulate endogenous testosterone production.

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Frequently Asked Questions

What is hCG used for?

hCG is used to trigger ovulation during fertility treatment, support assisted reproductive technologies, and treat certain hormone deficiencies in men.

Is hCG a steroid?

No. hCG is not an anabolic steroid. It is a gonadotropin hormone that stimulates the body's natural hormone production.

How is hCG administered?

hCG is administered by subcutaneous or intramuscular injection, depending on the product and treatment plan.

Can men be prescribed hCG?

Yes. hCG may be prescribed to men with certain hormone deficiencies to stimulate testosterone production and, in selected cases, support fertility.

Does hCG have side effects?

Yes. Possible side effects include injection site reactions, headaches, nausea, mood changes, and, in women undergoing fertility treatment, the risk of ovarian hyperstimulation syndrome (OHSS).

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Educational Disclaimer

This guide is provided for educational and informational purposes only and does not constitute medical advice. Human Chorionic Gonadotropin (hCG) is a prescription medicine that should only be used under the supervision of a qualified healthcare professional. Never start, stop, or change hormone treatment without consulting your healthcare provider.