PEPTIDE RESEARCH TOPIC

PT-141 Research Peptide

PT-141 is the development name for bremelanotide, a melanocortin receptor agonist. Explore its research, Vyleesi product context, safety, and formulation distinctions.

TOPIC OVERVIEW

About PT-141

Identity and names

PT-141 and bremelanotide refer to the same active compound. Vyleesi is a specific prescription product, not a name for every PT-141 preparation.

Compound type

It is a cyclic peptide and melanocortin receptor agonist. Research materials differ from the finished prescription formulation.

Mechanism

The compound acts through melanocortin signaling. A proposed central mechanism should be separated from the clinical endpoints studied.

Research focus and evidence

Clinical evidence supporting Vyleesi concerns a defined population with acquired, generalized hypoactive sexual desire disorder. Findings do not establish universal sexual-performance effects.

Regulatory status and limits

The U.S. Vyleesi label specifies premenopausal women with qualifying HSDD and includes cardiovascular, nausea, and pigmentation warnings. Approval does not extend to research vials or all populations.

Topics covered
  • melanocortin signaling
  • Vyleesi versus research preparations
  • HSDD clinical endpoints
  • label limitations
  • safety and formulation
Common names and related terms: PT-141, Bremelanotide, PT 141
RESEARCH SUMMARY

What Is PT-141?

LAST VERIFIEDOctober 7, 2026

The Vyleesi label defines a specific HSDD indication in premenopausal women and states that the product is not intended to enhance sexual performance. Its safety instructions apply to the finished prescription product. Vyleesi prescribing information

The regulatory distinction matters when reading PT-141 articles: an approved active ingredient does not make an independently compounded preparation FDA approved. Product-level evidence and quality must be evaluated separately. FDA human drug compounding overview

RESEARCH TRACKER

PT-141 Development & Clinical Research

Current programs, research areas, study status, enrollment, and expected completion dates organized from primary registry records.

LAST VERIFIEDOctober 7, 2026
Registered records10
Active studies1
Completed studies9
Phase 3 studies3
DeveloperRegistry sponsors include Palatin Technologies, Inc. Sponsor identity does not establish product approval.
AliasesPT-141, Bremelanotide, PT 141
Biological targetsThe compound acts through melanocortin signaling. A proposed central mechanism should be separated from the clinical endpoints studied.
Development stageRegistered intervention phases: Phase 1, Phase 2, Phase 3, Phase 4. See study-specific context.
Regulatory statusThe U.S. Vyleesi label specifies premenopausal women with qualifying HSDD and includes cardiovascular, nausea, and pigmentation warnings. Approval does not extend to research vials or all populations.

What current projects are studying

Hypoactive Sexual Desire DisorderLactating MotherObesityKidney DiseaseNauseaFemale Sexual Arousal DisorderSexual Arousal Disorder
SELECTED CURRENT RESEARCH

Latest and important projects

Showing 1 of 1 active studies
BMT-801NCT06565611

A Phase 2 Study Evaluating the Co-Administration of Bremelanotide With Tirzepatide for the Treatment of Obesity

Obesity

Phase
Phase 2
Status
Active Not Recruiting
Enrollment
108 Estimated
Expected completion
Mar 31, 2025
Record updated
Mar 6, 2025
Lead sponsor
Palatin Technologies, Inc
Primary sources: ClinicalTrials.gov (defined search)Checked October 7, 2026. Counts include interventional registry records with an explicit matching intervention name or alias; broad search results, biomarker-only observations, and unrelated compounds are excluded. Active includes recruiting, not yet recruiting, active not recruiting, and enrolling by invitation. PubMed is the linked title/abstract query count, not a number of clinical trials or a measure of evidence quality.

Registry status does not establish safety, efficacy, or regulatory approval.

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Essential PT-141 guides

PT-141 KNOWLEDGE ARTICLESPage 1 of 22
02
KNOWLEDGE ARTICLE

PT-141 Dosage for Men: Off-Label Dosing Guide

PT-141 dosage for men typically ranges from 1.25 mg to 2 mg subcutaneously, with 1.75 mg being the most studied. Learn timing, side effects, and safety.

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03
KNOWLEDGE ARTICLE

PT-141 Buy Guide: What to Know Before You Order

Looking to pt 141 buy? Learn what PT-141 is, how prescription Vyleesi differs from research peptides, typical pricing, and safety steps before you order.

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05
KNOWLEDGE ARTICLE

PT-141 Nasal Spray Price: What You'll Pay in 2025

PT-141 nasal spray price typically runs $50 to $200 per vial or bottle, depending on vendor, dose, and whether it's compounded or sold as a research peptide.

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09
KNOWLEDGE ARTICLE

PT-141 Peptide: Where to Inject Safely

PT-141 peptide where to inject: Learn approved subcutaneous injection sites (abdomen, thigh), step-by-step technique, dosing, and nasal spray differences.

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11
KNOWLEDGE ARTICLE

PT-141 Sublingual Reddit: What Users Report

PT-141 sublingual is not FDA-approved, and Reddit users report weak, inconsistent results. Compare sublingual, injection, and nasal routes and safety.

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13
KNOWLEDGE ARTICLE

How Much PT-141 Should I Take? Dosing Guide

How much PT-141 should I take? The FDA-approved bremelanotide dose is 1.75 mg injected at least 45 minutes before sex, no more than 8 doses a month.

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15
KNOWLEDGE ARTICLE

PT-141: How Long Does It Take to Work?

PT-141: how long does it take to work? Most people feel effects within 30 to 60 minutes, peak at 1 to 2 hours, and fade by 4 to 6 hours. What affects onset.

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16
KNOWLEDGE ARTICLE

PT-141 Dosage Female Reddit: What Women Report

PT-141 dosage female Reddit threads mention doses from 0.5 mg to 1.75 mg. Learn what women report, how Vyleesi is dosed, and what to discuss with a doctor.

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17
KNOWLEDGE ARTICLE

PT-141 Peptide Spray Dosage: What Research Shows

PT-141 peptide spray dosage ranges from 5 mg to 20 mg in research settings, since no nasal spray is FDA-approved. Learn timing, risks, and safer options.

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18
KNOWLEDGE ARTICLE

PT-141 Dosage Nasal Spray: What Research Shows

PT-141 dosage nasal spray is not FDA-approved, and reported intranasal amounts vary widely. See how researchers, men, and women compare dosing and risks.

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20
KNOWLEDGE ARTICLE

PT-141 Nasal Spray Dosage for Women: What to Know

PT-141 nasal spray dosage for women is not FDA-approved. Learn what research and user reports say about typical amounts, timing, side effects, and safety.

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