Bremelanotide (PT–141) is a synthetic cyclic heptapeptide analog of a–melanocyte-stimulating hormone (a-MSH). It is a potent agonist of melanocortin receptors, particularly MC3R and MC4R.
Mechanism of Action
PT-141 selectively activates melanocortin receptors in the central nervous system (hypothalamus and limbic system). This triggers:
Increased sexual arousal and desire via neural pathways independent of vascular mechanisms
Modulation of dopamine and other neurotransmitters involved in sexual motivation
Mild melanotropic effects (skin pigmentation) at higher cumulative doses
Unlike PDE5 inhibitors (e.g., sildenafil), PT-141 acts centrally on the brain to enhance libido and sexual response in both men and women.
Indications & Usage
Lovers Pen (Bremelanotide / PT-141) is used to support sexual desire and arousal. It is indicated for:
Enhancement of sexual motivation, arousal, and satisfaction
Support for hypoactive sexual desire or reduced libido
Assistance in improving intimate experiences and sexual wellness
Contraindications & Warnings
Do not use if you have:
Known hypersensitivity to Bremelanotide or any excipient
Uncontrolled hypertension or severe cardiovascular disease
History of melanoma or skin cancer
Pregnancy or breastfeeding
Age under 18 years
Warnings
Use only under medical supervision.
Not a substitute for addressing underlying relationship, psychological, or medical causes of sexual dysfunction.
May cause temporary increase in skin pigmentation or darkening of moles.
Discontinue immediately and seek medical attention if severe symptoms occur (e.g., severe nausea, high blood pressure, or allergic reaction).
Dosage & Administration
Subcutaneous injection only.
Standard / Effective Dose: 1.0-1.75 mg (24-42 clicks)
Starting / Low Dose: 0.5-1.0 mg (12-24 clicks) – recommended for first-time use
Frequency: As-needed, at least 45 minutes (ideally 45-60 minutes) before activity
Maximum: Do not exceed 1 dose per 24 hours or 8 doses per month
Timing: Inject 45-60 minutes prior to anticipated activity
Administration Instructions
Attach a sterile needle.
Dial your dose (e.g., 24 clicks = 1.0 mg).
Clean injection site (abdomen or thigh) with alcohol swab.
Insert needle at 45-90° angle and inject slowly.
Withdraw needle, dispose safely, and cap the pen.
Rotate injection sites.
Always inspect solution: Do not inject if cloudy, discoloured, or containing particles.
Side Effects
Common or potential reactions include:
Mild to moderate nausea (most common, usually temporary)
Flushing, headache, or light-headedness
Injection-site irritation or redness
Temporary increase in skin pigmentation or darkening of freckles/moles
Rare: Increased blood pressure, vomiting, or fatigue
If severe nausea, vomiting, or cardiovascular symptoms occur, discontinue use and seek medical attention.
Storage & Handling
Store either in refrigerator (fridge); never freeze or in a cool dry place (≤25-30°C / 77-86°F). Keep pen capped and protected from light and heat.
After first use: Same storage conditions.
Keep out of reach of children.
Discard if expired or solution appears abnormal.
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IMPORTANT NOTICE
This product is not intended to diagnose, treat, cure, or prevent any disease. Statements have not been evaluated by the FDA, SAHPRA, or other authorities. Always consult a licensed healthcare provider before use, especially if pregnant, breastfeeding, under 18, or managing medical conditions.
