Choriogonadotropin alfa (recombinant hCG)

Ovitrelle, Ovidrel, r-hCG

Forms: Ovitrelle (Ovidrel in the US). Urinary hCG (Pregnyl, Novarel) has its own card.

Other esters and forms: hCG (urinary human chorionic gonadotropin)

Hormone control & recoveryPrescription onlyWADA S2 · prohibitedEvidence: approved medicine

Recombinant hCG made in hamster-ovary cells, acting like urinary hCG: it mimics LH and signals the testes to make testosterone. Approved only for fertility treatment in women.

What it gives

What people use it for and what the sources report. Strength is a general category from the literature: mild, clear or strong.

Purpose

Approved to trigger final egg maturation and ovulation in women's fertility treatment. Men who use steroids take it off-label, like urinary hCG, to keep the testes working and support fertility. Prohibited for male athletes. Prescription only, under a doctor.

What people seek and what studies show

In men with Klinefelter syndrome it raised testosterone and estradiol and lowered FSH and LH. Other male data are scarce (case reports); effects on the testes are expected to match urinary hCG, whose evidence in men comes from small studies. In women's trials injection-site reactions were half as common as with urinary hCG.

Effects

Restoring natural production

Evidence: Approved medicine — studied in people for its medical use

Possible side effects

Possible does not mean certain: whether they appear depends on dose, duration, individual response and monitoring. Below — what to watch for and how to notice it early.

5 possible side effects

level · how often it is reported
Moderate
High estrogen (water, gyno risk)
Stimulates aromatase inside the testes, so estradiol rises along with testosterone, as shown in men treated before sperm retrieval.
How to notice: Puffiness, sensitive or itchy nipples, mood swings, water weight.
common
Moderate
Gynecomastia
Expected as with urinary hCG, where gynecomastia is a listed side effect driven by the estradiol rise.
How to notice: A tender lump or swelling under the nipple.
possible
Moderate
Black-market quality risk (fakes, contamination)
Often bought without a prescription; fakes and products spoiled by poor storage occur.
How to notice: Unexpected effects, pain or infection, a stronger or weaker effect than expected.
possible
Low
Water retention / bloating
Fluid retention (edema) is a known effect of hCG; caution with heart or kidney disease.
How to notice: Puffy face and ankles, softer look, quick weight jumps.
possible
Low
Injection pain, infection, oil cough
Injection-site reactions in about 15% of women in trials versus 28% with urinary hCG; non-sterile black-market product risks infection.
How to notice: Soreness, lumps; a short coughing fit right after an injection.
possible

What the levels mean

Lowbackground — just be aware
Moderatewatch for signs
Elevatedneeds regular control
Highcritical — can be life-threatening or permanent

Level: general category from the literature, not your personal risk

How often

common
reported often
possible
reported in some people
rare
reported occasionally

How to lower the risks

For 3 of 5 possible side effects there are specific ways to lower the chance: everyday measures, supplements and options a doctor may consider. For the rest — general advice. No measure removes a risk completely.

ModerateHigh estrogen (water, gyno risk)

Check estradiol by blood test before acting on symptoms; keep salt and body fat in check.

Measure
Regular blood testsWorking with a doctor
How each option helps (2)
  • Regular blood tests — A sensitive estradiol test shows whether water retention or nipple tenderness really comes from high estrogen.
  • Working with a doctor — Prescription estrogen control is safer when adjusted by lab results than by guesswork.
ModerateGynecomastia

React early: see a doctor at the first lump, check estradiol and prolactin.

Measure
Working with a doctor
How each option helps (1)
  • Working with a doctor — Early assessment of breast-tissue growth allows treatment before the change becomes permanent.
ModerateBlack-market quality risk (fakes, contamination)

Products obtained without a prescription are often fake, mislabeled or non-sterile, and there is no way to check at home. For legal supplements, third-party testing (Informed Sport, NSF) lowers, but does not remove, the risk of a positive doping test.

Low-level side effects

Water retention
Steady salt and water intake, cardio, check estradiol.
Measure
Working with a doctor
How each option helps (1)
  • Working with a doctor — Tells harmless water retention from swelling due to heart, kidney or liver trouble; steroid labels warn that edema can come with heart failure.
Injection site
Sterile technique, never share needles, vials or pens; see a doctor for a hot, swollen site. If equipment was ever shared, test for HIV and hepatitis B/C and ask about hepatitis B vaccination.

Check-ups and blood tests

Which tests and check-ups to do and when. This is a guide — agree the exact schedule with a sports physician.

Baseline tests
your own starting values — every later result is compared with them
Testosterone (total, free), LH, FSH, SHBGTestosterone also falls with hard training on too little food (RED-S) — test in the morning, rested, and tell the doctor about dieting.
Estradiol (sensitive assay)high estrogen, gynecomastia
Prolactingynecomastia
While taking
about 4–6 weeks in, then every 6–8 weeks — agree the exact schedule with your doctor
Testosterone (total, free), LH, FSH, SHBGTestosterone also falls with hard training on too little food (RED-S) — test in the morning, rested, and tell the doctor about dieting.
Estradiol (sensitive assay)high estrogen, gynecomastia
Prolactingynecomastia
After stopping
4–8 weeks after stopping (later after long-acting injections), then until values return to baseline
Testosterone (total, free), LH, FSH, SHBGTestosterone also falls with hard training on too little food (RED-S) — test in the morning, rested, and tell the doctor about dieting.
Semen analysisnot earlier than 3 months after stopping, then every 3 months until normal

Which doctors can help

Sports physiciancoordinates everything
Endocrinologisthigh estrogen, gynecomastia

Get medical help at once if

  • A painful lump under the nipple or nipple discharge — see a doctor early, while it can still regress; a hard, painless or fixed lump, skin dimpling or bloody discharge — see a doctor promptly.

In an emergency, call your local emergency number.

For women

Approved for women only, to trigger ovulation. Label risks include ovarian hyperstimulation syndrome, multiple and ectopic pregnancy and arterial blood clots. It is not anabolic.

Myth & fact

Myth

“Recombinant hCG taken during steroid use keeps your natural testosterone production running.”

Fact

It keeps the testes working, but the pituitary stays shut down. After stopping steroids natural LH still has to recover, and hCG does not do that part.

Combinations

No specific combination notes for this substance yet. The stack check still adds up side effects that several substances share.

Check combinations →

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