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Peptide encyclopedia/ Leuprolide
Illustration for Leuprolide

THE PEPSRADAR ENCYCLOPEDIA

Leuprolide

GnRH-related control of reproductive hormones

Prescription medicines · Sources checked 2026-10-04

Read the studies ↓Explore the molecule ↗

Leuprolide AT A GLANCE

The question behind the molecule.

Read findings and limitations ↓
1 selected publicationContext mattersThe clinical effect depends on sustained treatment and the condition; it should not be grouped with growth-hormone releasers.

What is Leuprolide?

Leuprolide is a GnRH agonist used to control sex-hormone signaling in several conditions. It belongs to a different pathway from growth-hormone secretagogues.

Biological role or research focus

GnRH-related control of reproductive hormones.

The clinical effect depends on sustained treatment and the condition; it should not be grouped with growth-hormone releasers.

Role reference: MedlinePlus · Leuprolide ↗

Names you may encounter

Lupron

Search terms can include brands, combinations, or historical names. They are not automatic product equivalents.

Class / identity
GnRH agonist
Main research area
Reproductive-hormone suppression
Evidence featured
Human randomized trial
Source check
October 4, 2026

Source: MedlinePlus · Leuprolide ↗

Molecular structure

Leuprolide: 2d molecular structure. The cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.⤢ Enlarge 2D
2D molecular structureThe cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.PubChem · CID 657181 ↗

Mechanism & research rationale

Sustained GnRH-pathway stimulation ultimately suppresses gonadal hormone production. The resulting clinical effect depends on the treatment duration and the condition.

Source: MedlinePlus · Leuprolide ↗

Clinical uses & product context

Product-dependent uses include prostate cancer, central precocious puberty, endometriosis, and fibroid-associated anemia. Evidence for one indication should not be substituted for another.

Source: MedlinePlus · Leuprolide ↗

What does the evidence show?

Selected published evidence, with the population, findings, and limits kept together. These original summaries draw on publication abstracts; they are not a systematic review.

Human randomized trial · 1984

Historical prostate-cancer comparison

Leuprolide versus diethylstilbestrol for metastatic prostate cancer.

Population / model
199 patients with previously untreated metastatic prostate cancer.
Study design
Leuprolide versus diethylstilbestrol, with crossover permitted on progression or intolerable effects.
Main finding
Hormonal suppression and overall response were similar; adverse-effect patterns differed. One-year survival was not significantly different.
Limits & context
This is historical evidence against an older comparator, not a ranking of today’s treatment options. Prostate-cancer findings do not establish benefit for every other leuprolide indication.

Source: Leuprolide versus diethylstilbestrol for metastatic prostate cancer. ↗

Read the original paper for methods, adverse events, funding, and conflicts of interest. Publisher access may require a subscription.

Further reading · 4 additional publication links

Exact-name PubMed search checked 2026-10-04. These records have not been appraised. A name match can include related compounds, combinations, or other formulations; it does not establish safety or benefit.

Improved Outcomes with Enzalutamide in Biochemically Recurrent Prostate Cancer. ↗
The New England journal of medicine · 2023 Oct 19 · Clinical Trial, Phase III, Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't

Oral Relugolix for Androgen-Deprivation Therapy in Advanced Prostate Cancer. ↗
The New England journal of medicine · 2020 Jun 4 · Clinical Trial, Phase III, Comparative Study, Equivalence Trial, Journal Article, Multicenter Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't

Leuprolide. ↗
· 2026 Jan · Study Guide

Improved Survival with Enzalutamide in Biochemically Recurrent Prostate Cancer. ↗
The New England journal of medicine · 2026 Feb 5 · Journal Article, Randomized Controlled Trial, Clinical Trial, Phase III, Multicenter Study, Comparative Study

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Safety & precautions

Key precautions

Bone-density loss, hot flashes, mood changes, and metabolic or cardiovascular concerns can matter. Pregnancy is incompatible with these treatment uses; specific contraindications and monitoring belong to the product label.

Source: MedlinePlus · Leuprolide ↗

This is not a complete list of contraindications, interactions, or adverse effects. Medicine labels apply to specific products and indications; research-use listings are not interchangeable with approved medicines.

What are people discussing?

No editorial transcript note has been reviewed for this profile yet. Below are the matching video records available for exploration; title and caption matches are not verified claims.

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0 matching video records · 0 with captions indexed.

Across the full library, 30 caption files are indexed from 20,199 inventoried videos. Most transcripts remain unreviewed. Select a thumbnail or timestamp to watch inside PepsRadar. Thumbnail images load from YouTube.

No matching video has been identified in the current snapshot.

Sources & supplier listings

Listings are grouped by the vendor’s stated identity. Blends and modified derivatives are labeled separately. Inclusion is not a quality assessment or an endorsement.

No verified matching catalog listing yet

We have not added a supplier for this profile. Missing products and coded listings are not filled with guesses.

Catalog checked 2026-10-04. Seller listings retain their stated intended use. Shops covered: BioLongevity Labs, BioLongevity Supplements, American Peptides, PSPeptides. This is not a market-wide comparison. Affiliate participation does not determine evidence or editorial coverage.

Questions worth asking

  • Which indication and formulation does the source describe?
  • Does the video make a broader claim than the source supports?
  • The clinical effect depends on sustained treatment and the condition; it should not be grouped with growth-hormone releasers.
  • What adverse effects, uncertainty, and conflicts of interest does the original source report?

Frequently asked questions

Is leuprolide intended to boost testosterone?

Sustained therapeutic use generally aims at suppression of reproductive hormones. It should not be grouped with testosterone-enhancement products.

Source: MedlinePlus · Leuprolide ↗

Why include an older cancer study?

It documents the clinical evidence history, while its older comparator limits relevance to today’s treatment choices.

Source: Leuprolide versus diethylstilbestrol for metastatic prostate cancer. ↗

References & editorial record

Source notes checked 2026-10-04. Original PepsRadar summaries. Not reviewed by a medical professional. Topic grouping is editorial navigation, not a treatment recommendation. Video notes specify which excerpts were reviewed; no full transcripts are published.

For research and education only. This page does not provide medical advice, diagnosis, or treatment. Research-only listings are not instructions for human use.

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MOLECULAR ATLAS

Leuprolide

Download illustration ↓Source record ↗
Leuprolide 2d molecular structure

The cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.