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Current regulator label
This PT-141 (bremelanotide) reconstitution calculator helps you work out the reconstitution concentration (mg/mL), the draw volume (mL), and the equivalent number of units on a U-100 insulin syringe for PT-141 (bremelanotide). Bremelanotide is FDA-approved as Vyleesi for a narrow labeled indication and is given by subcutaneous injection, with a study/label dose of 1.75 mg per the current regulator label. This tool performs arithmetic only and is not medical advice; it does not recommend a dose or product, and any decisions should be discussed with a qualified healthcare professional.
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Reconstitution / draw volume / syringe units / supply-chain
Arithmetic checks out. Confirm clinically, against the label, and against the actual vial before any use.
Independent check - dose mg / concentration mg/mL = volume. U-100 units = mL x 100.
Reverse: pick a dose and the units you want it to read, then calculate diluent to add.
Status
FDA-approved as Vyleesi for a narrow labeled indication
Route
Subcutaneous
Frequency
As needed
Published range
1.75 mg
Verified
2026-06-24
1.75 mg at least 45 min before anticipated sexual activity; max 1 dose/24 h and not more than 8/month
Commercial Vyleesi is a 1.75 mg/0.3 mL autoinjector; no reconstitution required.
Contraindicated in uncontrolled hypertension or known cardiovascular disease.
Supply-chain quality · Finnrick
Avg quality score
7
/10
Purity range
96.09
–
99.95
%
Qty divergence
±
51
%
Vendors · samples
27
·
97
Common vial sizes
10
mg
Test window
Mar 2025 - Apr 2026
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COMPARISONS
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