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Sexual Health✓ FDA Category 1 — Feb 2026No login required

PT-141 Reconstitution & Dosage Calculator

FDA-approved melanocortin receptor agonist (Vyleesi) for hypoactive sexual desire disorder. Used off-label in both sexes. Onset: 45–90 minutes.

Half-life: 120 minFrequency: As needed (max 1x per 72 hours)Route: Subcutaneous

PT-141 Reconstitution Calculator

Pre-filled with standard PT-141 values. Adjust as needed.

Typical range: 1–2mg per use
Concentration5000 mcg/mL
Draw volume0.200 mL
Draw to (100-unit syringe)20.0 units
Total doses per vial10 doses

PT-141 Dosing Guide

Standard: 1–2mg subcutaneously 45–90 min before sexual activity. Maximum once every 72 hours. Duration: up to 12 hours. Start with 1mg to assess tolerance.

Blood markers to track

Blood pressure (PT-141 may temporarily elevate)TestosteroneEstradiol

Note: FDA-approved as Vyleesi. Common effects: flushing, nausea, headache. Monitor BP. Avoid with cardiovascular disease.

Track whether PT-141 is working

Log Blood pressure (PT-141 may temporarily elevate) and Testosterone across draws and let StackAI analyze your response. Free to start.

Track my PT-141 labs free →
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