Approved FDA Indication Off-Label Use Risks
FDA · TGA · WADA · peer-reviewed literature Updated May 2026 Reviewed by Allmeds AI Pharmacist

PT-141 (Bremelanotide) Dosage: Vyleesi Label vs Off-Label Use

PT-141 is the peptide bremelanotide, approved by the FDA as Vyleesi for premenopausal hypoactive sexual desire disorder (HSDD) at a specific labelled dose. The FDA label sets a maximum frequency and contraindicates certain populations. Off-label use at different doses or in other populations is not regulator-validated.

PT-141 (bremelanotide) is FDA-approved as Vyleesi for premenopausal HSDD with a specific labelled dose and frequency. The FDA label restricts use to the approved indication and contraindicates uncontrolled hypertension and known cardiovascular disease. Off-label dosing is not regulator-validated. Speak to your prescriber.

Key Takeaways

  • Bremelanotide is FDA-approved as Vyleesi for premenopausal HSDD with a specific labelled dose and maximum frequency.
  • Per the FDA label, Vyleesi is contraindicated in uncontrolled hypertension or known cardiovascular disease, because of transient blood-pressure increases.
  • Common labelled adverse reactions include nausea, flushing, injection-site reactions, headache, and vomiting.
  • Off-label use at different doses or in other populations is not regulator-validated.
  • Allmeds does not publish off-label dosing protocols.

Approved Vyleesi dosing

The FDA-approved indication is premenopausal HSDD. The Vyleesi label specifies a dose administered as needed, a maximum frequency, and dosing instructions that include subcutaneous injection in the abdomen or thigh. The specific dose and frequency are part of the prescribing information your clinician will discuss; Allmeds does not republish self-administration protocols here. Speak to your prescriber.

Label warnings and contraindications

The Vyleesi FDA label includes:

  • Contraindicated in uncontrolled hypertension and known cardiovascular disease, because of transient increases in blood pressure and decreases in heart rate after each dose.
  • Common adverse reactions: nausea, flushing, injection-site reactions, headache, vomiting.
  • Risk of focal hyperpigmentation, particularly with frequent use.
  • Drug interactions: Vyleesi can affect absorption of co-administered oral drugs with narrow therapeutic indices.

Off-label dosing

PT-141 marketed off-label (for non-HSDD uses, in men, or at different doses) is not regulator-validated. Compounded versions sold outside the approved Vyleesi product are not pharmaceutical-grade in the same sense.

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Common Questions

What is the approved Vyleesi dose?

The FDA label specifies the dose and frequency. Allmeds does not republish self-administration protocols. Discuss with your prescriber, who will share the prescribing information.

Can men take PT-141?

Vyleesi is FDA-approved for premenopausal HSDD in women. PT-141 use in men is off-label and not regulator-validated.

Is compounded PT-141 the same as Vyleesi?

No. Compounded PT-141 is not equivalent to the FDA-approved Vyleesi product. Purity, potency, sterility, and label-defined safety are not guaranteed in compounded versions.

What are the cardiovascular cautions?

Per the FDA label, Vyleesi is contraindicated in uncontrolled hypertension and known cardiovascular disease, because of transient blood-pressure increases. Pre-existing hypertension is a discussion to have with your prescriber.

References

  1. U.S. Food & Drug Administration. Vyleesi (bremelanotide) prescribing information. Source.
  2. U.S. Food & Drug Administration. Certain Bulk Drug Substances for Use in Compounding That May Present Significant Safety Risks. Source.
Not medical advice. This page summarises regulator statements and peer-reviewed literature for general information. It is not a substitute for professional medical advice. Speak to your doctor or pharmacist before starting, stopping, or changing any medicine.