Fact-Checked·Verified against peer-reviewed sources · Last updated Oct 18, 2026·For research use only - not for human consumption
ImmuneActive Research

Difelikefalin

Also known as: CR845 · kappa opioid agonist · kappa opioid peptide peripherally restricted

For in-vitro (laboratory) research purposes only. Not for human or animal consumption.

Peptide Stores Online branded research vialCOMING SOON

Available Forms

Injectable

Research Applications

Immune SupportAnti-Inflammatory

Check independent lab results, free

Finnrick Analytics publishes independent lab test results for peptide products from named vendors, and anyone can check the published results for free.

For in-vitro research use only. Not for human consumption.

1What Is Difelikefalin?

Peripherally restricted kappa-opioid receptor agonist studied for pruritus and inflammation without central side effects.

4Published Research - Plain English Summaries

The studies below have been published in peer-reviewed journals. Summaries are written in plain language - no jargon. Citations are provided as text only.

other

Larsen GØ, Kjærgaard KD, Christiansen CF, Tietze IN, Hornstrup BG, Liem YS, Bangstrup M, Rantanen JM, Uhde M, Peters CD · 2026 · Kidney medicine · PMID 42890303

review

Saucereau J, Brenaut E, Ficheux AS, Rostoker G, Misery L, Le Gall-Ianotto C · 2026 · Renal failure · PMID 41708519

other

Mourani C, Kaur A, Jaoudeh PA, Reynolds B, Morin I, Enoiu M · 2026 · Pediatric nephrology (Berlin, Germany) · PMID 42895571

other

Müller S, Maintz L, Bieber T · 2024 · Allergy · PMID 38186219

review

Deeks ED · 2021 · Drugs · PMID 34674115

human study

Fishbane S, Jamal A, Munera C, Wen W, Menzaghi F, KALM-1 Trial Investigators · 2020 · The New England journal of medicine · PMID 31702883

Buy Difelikefalin - Verified Vendors

The vendors below are affiliate partners of Peptide Stores Online. Each listing links to the vendor's own website, where ordering, payment, and delivery are handled by the vendor.

No active listings yet

Check back soon - vendors are added regularly.

All content on this page is for in-vitro research purposes only. Not intended for human or animal use. Consult a licensed professional before handling research chemicals. No content on this page constitutes medical advice or a treatment recommendation.

← Back to Peptide Library

All products listed on Peptide Stores Online are for in-vitro laboratory and educational research purposes only. Not for human or animal consumption. Not evaluated by the Food and Drug Administration. Not intended to diagnose, treat, cure, or prevent any disease or condition. All sellers and buyers agree to full research-use-only terms at account creation. Peptide Stores Online assumes no liability for misuse of any product listed on this platform.