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RecoveryInvestigational

Dalargin

Intravenous, Intramuscular injection
Written by Peptide Association Editorial TeamMedically reviewed by Ian Justl Ellis, MD, CPTLast reviewed Editorial policy

Overview

Dalargin is a synthetic hexapeptide analog of leucine-enkephalin with enhanced metabolic stability due to D-amino acid substitutions. It acts as a selective delta opioid receptor agonist with peripheral and central effects, including modulation of stress responses, anti-inflammatory activity, and cytoprotection in gastrointestinal and vascular tissues.

Mechanism of Action

Unlike classical opioids, dalargin exhibits reduced central analgesic potency but pronounced tissue-protective properties.

Research Summary & Key Findings

Dalargin has been used clinically in Russia and some Eastern European countries for treatment of gastric ulcers, pancreatitis, and stress-related mucosal injury since the 1980s. Peer-reviewed evidence in Western literature is limited, with most data derived from Soviet-era clinical studies and pharmacological characterization in animal models.

Clinical Status

Investigational

Dalargin is in the investigational stage. While preclinical and early-phase data exist, it has not received regulatory approval for clinical use in the United States.

Administration Routes

IntravenousIntramuscular injection

References

Primary literature

Study-level citations for this compound are being verified against the primary sources before publication. The database queries above return the current indexed literature in the meantime.

Related Peptides in Recovery

No lawful pathway today

Dalargin is not FDA-approved and does not currently have a lawful prescription or compounding pathway in the United States, so there is nothing for us to sell you here and no consultation to book. That can change: eight peptides moved back to a lawful pathway in February 2026.

Tell me if the status changes

One email, only if this compound's regulatory standing actually moves. Not a newsletter, not a sales sequence.

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Disclaimer: This information is provided for educational and research purposes only. It is not intended as medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide therapy. The Peptide Association does not endorse or recommend any specific treatment protocol. See our editorial policy for how this content is produced and reviewed.