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hCG for Women: Studies and Label Warnings

Studies of hCG that enrolled only women, what they measured, and what is still unproven.

Medical review pendingGonadotropinUpdated
Strongest evidence
Human RCT
Studies enrolling only women
3
in our evidence file (PubMed search, 11 Oct 2026)
FDA status
FDA approved (prescription only)

Studies that enrolled only women

Each row is a study whose participants were described as women only. Results from one sex are not evidence for the other. Studies of animals and cells are not included.

hCG studies that enrolled only women
StudyDesignPopulationDoseFirst outcome
South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 1990, PMID 2405506Human RCTObese women (BMI over 30 kg/m2) on a 5,000 kJ per day dietNot statedWeight loss vs placebo: hCG showed no advantage over placebo for any recorded variable in obese women on a diet.
The American journal of clinical nutrition 1976, PMID 786001Human RCTObese women aged 18-60 on a 500-calorie dietNot statedWeight loss vs placebo: No significant difference in weight loss, waist/hip circumference or hunger between hCG and placebo.
Journal of stroke and cerebrovascular diseases 2015, PMID 25440322Human case report29-year-old woman using hCG in a weight-loss regimenNot statedNot stated

Peptides studied in women, compared

How strong is it?

Strongest evidence:Human RCT evidence, 4 of 4

A human randomized trial outweighs any number of animal studies. Animal and cell results show a mechanism worth testing, not that it works in people.

Women's health context

MedlinePlus notes that pregnancy and conditions of the female organs are among the unique issues women face.[11]

Studies that involved only women

A double-blind trial in women on the same diet found no statistically significant difference between hCG and placebo in weight loss or hunger ratings.[2]

A second trial in obese women given hCG or saline injections found no advantage for hCG on any recorded variable.[1]

A case report describes a 29-year-old woman who had an ischaemic stroke after hCG use in a weight loss regimen.[3]

Women-specific label text

The Novarel label says hCG may cause fetal harm when given to a pregnant woman.[12]

The Pregnyl label says it is not indicated in pregnancy.[13]

The Pregnyl label warns of ovarian hyperstimulation syndrome, a serious event that may progress rapidly.[13]

The labelled female use is induction of ovulation in anovulatory, infertile women after appropriate pretreatment.[12]

Other peptides people research for women

PT-141Kisspeptin-10HGHSemaglutide
All peptides for women, compared

Common questions

Has hCG been studied in women?

3 studies we summarise enrolled only women. Results from one sex are not evidence for the other.

Is hCG approved for women?

hCG is FDA approved (prescription only). The label sets who it is approved for; use outside it is off-label.

Does hCG work for weight loss in women?

Both placebo-controlled trials in women found it did not; one concluded there is no rationale for its use in obesity.[1]

What does the Pregnyl label say about hCG in pregnancy?

The Pregnyl label says there are no data on the use of hCG in pregnancy.[13]

More on hCG

DosageDoses used in published studies, with the source for each.CalculatorVial, water and dose to syringe units.Side effectsWhat labels and studies report, and what is unknown.ResultsStudy outcomes and when they were measured.BenefitsClaimed benefits next to what published studies measured.How it worksTarget, mechanism and how long it acts, from the label or studies.

Sources

  1. 1Human chorionic gonadotrophin and weight loss. A double-blind, placebo-controlled trial.South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde · 1990PMID 2405506Accessed 2 Oct 2026
  2. 2Ineffectiveness of human chorionic gonadotropin in weight reduction: a double-blind study.The American journal of clinical nutrition · 1976PMID 786001Accessed 2 Oct 2026
  3. 3Paradoxical consequence of human chorionic gonadotropin misuse.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2015PMID 25440322Accessed 11 Oct 2026
  4. 4PubMed search: ("human chorionic gonadotropin"[tiab] OR hCG[tiab]) AND (hypogonadism[tiab] OR "male infertility"[tiab] OR hypogonadotropic[tiab] OR testosterone[tiab]) AND (randomized controlled trial[pt] OR meta-analysis[pt]) (97 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  5. 5PubMed search: ("human chorionic gonadotropin"[tiab] OR hCG[tiab]) AND (obesity[tiab] OR "weight loss"[tiab]) AND (randomized controlled trial[pt] OR meta-analysis[pt] OR systematic review[pt]) (11 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  6. 6PubMed search: ("human chorionic gonadotropin"[tiab] OR hCG[tiab]) AND (testosterone replacement[tiab] OR TRT[tiab] OR "anabolic steroid"[tiab] OR bodybuilder*[tiab] OR "lean body mass"[tiab] OR "muscle"[tiab]) AND humans[mh] (260 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  7. 7PubMed search: ("human chorionic gonadotropin"[tiab] OR hCG[tiab]) AND (half-life[tiab] OR pharmacokinetic*[tiab]) AND men[tiab] NOT pregnan*[tiab] (9 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  8. 8PubMed search: ("human chorionic gonadotropin"[tiab] OR hCG[tiab]) AND (hypogonadism[tiab] OR testosterone[tiab] OR cryptorchidism[tiab] OR "male infertility"[tiab]) AND (adverse[tiab] OR "side effect*"[tiab] OR safety[tiab] OR tolerab*[tiab] OR toxicity[tiab] OR "case report"[pt]) AND humans[mh] (130 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 11 Oct 2026
  9. 9PubMed search: ("chorionic gonadotropin"[tiab] OR hCG[tiab]) AND ("weight loss"[tiab] OR obesity[tiab] OR cryptorchidism[tiab]) AND (adverse[tiab] OR "side effect*"[tiab] OR thromboembol*[tiab] OR "case report"[pt] OR death[tiab]) (61 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 11 Oct 2026
  10. 10PubMed search: ("chorionic gonadotropin"[tiab] OR hCG[tiab]) AND (gynecomastia[tiab] OR "injection site"[tiab] OR hypersensitivity[tiab] OR anaphyla*[tiab]) AND (male[tiab] OR men[tiab] OR boys[tiab]) (95 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 11 Oct 2026
  11. 11Official web pageOfficial web page · web page
  12. 12NOVAREL ® (chorionic gonadotropin) for injection, for intramuscular use Initial U.S. Approval: 1974FDA label, DailyMed · current labeldailymed.nlm.nih.govAccessed 2 Oct 2026
  13. 13Pregnyl ® (chorionic gonadotropin) for injectionFDA label, DailyMed · current labeldailymed.nlm.nih.govAccessed 2 Oct 2026

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