PT-141 + Melanotan II Stack Dosage Protocol | PeptideDosages.com

PT-141 (10 mg) + Melanotan II (10 mg) Stack Dosage Protocol

PT-141 & Melanotan II (10 mg Vials) Dosage Protocol

PT-141 Dosage Chart

PT-141 is dosed at 750 mcg–1.75 mg daily via subcutaneous injection in educational protocols. A 10 mg reconstituted with bacteriostatic water yields about 3.33 mg/mL. This information is for research and educational use only.

Reconstitute each: Add 3.0 mL bacteriostatic water → ~3.33 mg/mL concentration.

PT-141 dose: 750–1750 mcg on-demand (≥45 min before activity); max 1 dose per 24 h.

Melanotan II dose: 250–1000 mcg once daily with gradual titration.

Easy measuring: At 3.33 mg/mL, 1 unit = 0.01 mL ≈ 33.3 mcg on a U-100 insulin syringe.

Storage: Lyophilized: freeze at −20 °C (−4 °F); reconstituted: refrigerate at 2–8 °C (35.6–46.4 °F) and use within ~1 week.

PT-141 (bremelanotide) and Melanotan II are cyclic melanocortin receptor agonists with distinct but related applications. PT-141 is FDA-approved for hypoactive sexual desire disorder and is used on-demand[1][2], while Melanotan II has been studied for its effects on skin pigmentation and sexual function with daily dosing protocols[5][6]. This educational guide covers reconstitution, dosing, and administration for both peptides.

Related research: For distinct compound, component, or formulation evidence and safety context, read Melanotan II Peptide: Benefits, Uses, Side Effects, Dosage, and Research and PT-141 Peptide: Benefits, Uses, Side Effects, Dosage, and Research. These links are comparisons only; the compounds and formulations should not be treated as interchangeable.

PT-141 (Bremelanotide) — On-Demand Protocol (3 mL = ~3.33 mg/mL)

Route: Subcutaneous injection (abdomen or thigh). Frequency: On-demand, at least 45 minutes before anticipated sexual activity; no more than 1 dose per 24 hours and ≤8 doses per month[1][3].

Initial / Titration

500–750 mcg

15–22 units (0.15–0.22 mL)

Standard

1000–1500 mcg

30–45 units (0.30–0.45 mL)

Full / FDA-Approved

1750 mcg (1.75 mg)

52 units (0.52 mL)

Titration: Start at a lower dose (500–750 mcg) and increase as tolerated. Nausea is common with initial use and typically diminishes with subsequent doses[2][4].

Melanotan II — Daily Protocol (3 mL = ~3.33 mg/mL)

Route: Subcutaneous injection (abdomen or thigh). Frequency: Once daily during loading phase; reduced frequency for maintenance[5][6].

Week 1

250 mcg

7.5 units (0.075 mL)*

Week 2

500 mcg

15 units (0.15 mL)

Weeks 3–4

750 mcg

22 units (0.22 mL)

Weeks 5+ (Loading)

1000 mcg

30 units (0.30 mL)

Maintenance

500–1000 mcg (2–3×/week)

15–30 units (0.15–0.30 mL)

*For ≤10-unit (≤0.10 mL) administrations, consider 30- or 50-unit insulin syringes for improved readability.

Titration: Begin at 250 mcg and increase by 250 mcg every 5–7 days as tolerated. Nausea and flushing are common initially and typically subside with continued use[6].

Reconstitution Steps (Both Peptides)

Draw 3.0 mL bacteriostatic water with a sterile syringe.

Inject slowly down the vial wall; avoid foaming or direct impact on the powder.

Gently swirl or roll until fully dissolved (do not shake).

Label with date, peptide name, and concentration; refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.

Use reconstituted solution within approximately 1 week for optimal stability[7].

Supplies Needed

Plan based on an 8–16 week protocol. PT-141 assumes ~1 dose/week on-demand; Melanotan II assumes daily loading then maintenance.

PT-141 (On-Demand, ~1×/week)

Peptide Vials (PT-141, 10 mg each):

8 weeks: 2 vials

12 weeks: 3 vials

16 weeks: 4 vials

Insulin Syringes (U-100):

8 weeks: 8 syringes

12 weeks: 12 syringes

16 weeks: 16 syringes

Bacteriostatic Water (10 mL bottles):

8 weeks (2 vials × 3 mL): 1 bottle

12 weeks (3 vials × 3 mL): 1 bottle

16 weeks (4 vials × 3 mL): 2 bottles