Track Your PT-141 Protocol
Log bremelanotide doses, track your timing and response, and monitor side effects.
PT-141 (Bremelanotide) — Melanocortin Receptor Agonist
Regimen is the PT-141 tracker app for people using bremelanotide for sexual health. PT-141 has specific timing and dosing considerations that make tracking valuable — when you took it, how long until onset, your response, and any side effects like nausea or flushing. Regimen logs every dose, tracks your personal timing patterns, and keeps a private record of your protocol — with half-life data sourced from published clinical studies and FDA prescribing information. Free — every feature unlocked for your first compound. No paywall, no trial, no credit card. 4.9 stars on iOS and Android.
Why Track PT-141 with Regimen?
Timing and onset tracking
PT-141 is typically administered 45 minutes to several hours before desired effect. Tracking your personal onset time across multiple uses helps you dial in timing for your physiology.
Side effect logging
Nausea and flushing are common PT-141 side effects. Log severity per dose to identify your optimal dose and whether side effects diminish with use.
Dose optimization
PT-141 dosing (typically 1-2 mg) may need adjustment. Track your dose and response to find your personal effective dose.
Frequency monitoring
PT-141 has a recommended maximum frequency (not more than once in 24 hours, not more than 8 times per month per the Vyleesi label). Regimen tracks your usage frequency.
Share and export your data
Share your stack and health metrics with your practitioner, export your full dose history, or keep it for your own private records.
Related Tools & Guides
What Regimen Tracks for PT-141
Why people are switching to Regimen
"I was juggling my peptide schedule between a notes app and my calendar, and I was constantly stressed about missing a dose. Regimen fixed all of it. The reminders and calculator are essential."
Alex T., Bio-Optimizer
"I finally feel in control of my weight loss journey. The photo comparison feature is addictive. Seeing my progress next to the tracking data motivates me way more than just the number on the scale."
Sarah K., GLP-1 User
How Regimen compares to other PT-141 tracker apps
| App | Multi-Compound | Reconstitution Calc | Lab Tracking | Apple Health | Free Tier |
|---|---|---|---|---|---|
Regimen | Unlimited (Pro) | Built-in | Full panel with dose overlay | Apple Health + Google Health Connect | One compound free |
| 150+ compounds | Yes | Partial (not primary) | iCloud sync + Apple Health | Freemium | |
| Partial (peptide-focused) | Yes | Partial (not primary) | Partial (not advertised) | Free up to 2 protocols | |
| 38+ compounds | Partial (not explicit) | Partial (not primary) | Yes | Freemium | |
| 54+ compounds | Yes (VialDex) | Biomarkers | Cloud sync | Freemium |
Feature coverage based on publicly available app descriptions and pricing as of May 2026. See each app's App Store listing for current details.
How we built the PT-141 tracker
PT-141 (bremelanotide, branded as Vyleesi) is taken on-demand rather than on a daily schedule, and the side-effect profile is what most people want to track: nausea, flushing, and transient blood pressure changes are common, and the side-effects often correlate with timing of dose to effect onset.
Regimen's PT-141 tracker is built for the on-demand pattern:
- On-demand dose logging: log each dose with time, dose amount, and site.
- Effect timing tracking: log when effects begin and end, so you can see your personal onset pattern across multiple doses.
- Side-effect tracking across 50+ markers: nausea, flushing, blood pressure changes, sleep impact (if dose is taken in the evening), plus custom.
- Blood pressure tracking: manual or Apple Health/Google Health Connect sync, since BP changes are the most clinically relevant side effect.
- Reconstitution calculator: handles any vial size with any BAC water volume.
- Apple Health and Google Health Connect: blood pressure, resting heart rate auto-sync.
- Multi-compound support: PT-141 alongside other peptides, TRT, or HRT.
Your data stays private
Your health data is stored securely. We never share, sell, or monetize your information. What you track is your business, not ours.
Frequently Asked Questions
How do I track PT-141 doses in Regimen?
Log each on-demand dose with time, amount, and site. The app keeps the full history so you can see your personal pattern (effective dose, onset timing, side-effect profile) across multiple uses.
Does Regimen calculate PT-141 reconstitution math?
Yes. Enter the vial size and BAC water volume, and the calculator outputs mcg per unit on an insulin syringe.
Can I track when effects begin and end?
Yes. Log onset and offset times so you can see your personal onset pattern across doses. Useful for finding the timing that works best for you.
What PT-141 side effects can I log?
Nausea, flushing, blood pressure changes (the most clinically relevant), sleep impact if dosed in the evening, plus custom markers.
Can Regimen track blood pressure alongside PT-141 doses?
Yes. BP data can be logged manually or synced from Apple Health or Google Health Connect (e.g., from a home BP cuff). Each reading plots against your dose timeline.
Is there a free PT-141 tracker in Regimen?
Yes. The free tier covers one compound. Pro ($4.99/month) unlocks multi-compound tracking and Signals.
Stop guessing. Start optimizing.
Your protocol deserves better than a notes app and a calendar.