PT-141 (Bremelanotide) Side Effects
PT-141 (bremelanotide) side effects: nausea, flushing, blood pressure and darkened skin from the Vyleesi label, plus anonymous user reports.
Anonymous user report. Not medical advice. Peptides discussed are not FDA-approved for the uses described. Editorial process →
Short answer
Bremelanotide is FDA-approved as Vyleesi for low sexual desire in premenopausal women. In its trials about 40% had nausea, and flushing, headache and injection-site reactions were common. It briefly raises blood pressure and lowers heart rate, so the label warns against use with uncontrolled high blood pressure or heart disease. Repeated use can darken skin, gums or breast tissue. Research-labelled PT-141 has none of the approved product's quality controls. Peptide Confessions does not publish dosing, timing, injection or sourcing guidance.
What users report
Nausea is the side effect people here name: #279 and #317. Others focus on effects on desire (#117, #193).
Related topics
related peptides:
community guides:
More confessions from the archive
Community Q&A
- What is the most common PT-141 side effect?
- Nausea — about 40% in the Vyleesi trials — followed by flushing and headache.
- Does PT-141 raise blood pressure?
- Yes, transiently. The approved label warns against use with uncontrolled hypertension or cardiovascular disease.
- Can PT-141 darken skin?
- Yes. Focal hyperpigmentation was reported with repeated use, as with other melanocortin drugs.
- Does Peptide Confessions give dosing?
- Peptide Confessions does not publish dosing, timing, injection or sourcing guidance.
Sources
Anonymous first-hand reports plus sourced context — educational only, not medical advice. Editorial policy & corrections.