Is Dalargin FDA approved?

Dalargin is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

VIP is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

How is Dalargin administered in research settings?

In research settings, Dalargin is typically administered via the subcutaneous or intravenous routes. PeptideBase does not provide dosing or administration instructions.

How is VIP administered in research settings?

In research settings, VIP is typically administered via the intranasal or intravenous routes. PeptideBase does not provide dosing or administration instructions.

Home›Research›Compare›Dalargin vs VIP

Peptide Comparison

Dalargin vs VIP

Q: What is the difference between Dalargin and VIP?

Dalargin: Binds delta and mu opioid receptors with peripheral preference due to limited CNS penetration. VIP: Pleiotropic neuropeptide binding VPAC1/VPAC2 receptors; suppresses neuroinflammation, regulates circadian rhythm via SCN, modulates immune response

Both are Neuro & Cognitive peptides.

Dalargin

Leu-enkephalin-Arg

RecoveryNot EvaluatedResearch Only

No providers listed yet

Full Dalargin profile →

VIP

Vasoactive Intestinal Peptide

CognitiveNot EvaluatedResearch Only

Half-life: ~1-2 minutes (plasma)

23 providers listed

Full VIP profile →

Bottom line

VIP carries stronger published evidence (RCT, 16 key studies) than Dalargin (Animal, 1); both are research compounds.

Quick Verdict

Dalargin

Half-life

—

VIP

Half-life

~1-2 minutes (plasma)

Which One Should You Choose?

Your goal	Better option
Stronger clinical evidence	VIP
More provider options (0 vs 23)	VIP

Research summary only — not medical advice. Consult a qualified provider before making any decisions.

Side-by-Side Comparison

Dalargin

VIP

Mechanism Family

Neuro & Cognitive

Half-life

—

~1-2 minutes (plasma)

FDA Status

not evaluated

Admin Routes

subcutaneous, intravenous

intranasal, intravenous

Availability

Research Only

Providers

None listed

23 listed

Avail. Notes

—

Endogenous 28-aa neuropeptide. No FDA-approved product. Inhaled VIP studied in Phase 2 for pulmonary arterial hypertension (Santhera); program not advanced. No NDA filed. Research use only.

Research Evidence

Dalargin

Animal · 1 key study · dated evidence base — most recent 2009

VIP

RCT · 16 key studies · most recent 2025

Research Citations

Dalargin

Animal2009 · Bulletin of Experimental Biology and Medicine

Gastroprotective effect of dalargin in gastropathy due to treatment with nonsteroid antiinflammatory drugs

VIP

RCT2022 · Crit Care Med

The Use of IV Vasoactive Intestinal Peptide (Aviptadil) in Patients With Critical COVID-19 Respiratory Failur…

RCT2020 · Cephalalgia

The effect of pituitary adenylate cyclase-activating peptide-38 and vasoactive intestinal peptide in cluster…

RCT1990 · J Urol

A clinical trial of intracavernous vasoactive intestinal peptide to induce penile erection.

Case series2024 · J Indian Assoc Pediatr Surg

Vasoactive Intestinal Polypeptide Secreting MS Neuroblastoma.

+12 more

About Dalargin

Binds delta and mu opioid receptors with peripheral preference due to limited CNS penetration. Reduces gastric acid secretion, promotes mucosal blood flow, and inhibits ulcer formation via prostaglandin-mediated pathways.

Research Areas

gastroprotectionGI repairanti-ulcerpain modulation

About VIP

Pleiotropic neuropeptide binding VPAC1/VPAC2 receptors; suppresses neuroinflammation, regulates circadian rhythm via SCN, modulates immune response

Research Areas

neuroprotectionanti-inflammatory (CNS)CIRS treatmentcircadian rhythm regulation

Safety Profile

Information below reflects published research data only — not medical advice. Consult a qualified provider before use.

Dalargin

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

VIP

Reported (Unverified — Pending Clinical Review)

low blood pressurevasoactive drug interactions

No established clinical contraindications

Find Providers

Where to source these peptides

Providers offering

Dalargin

Browse directory →

Providers offering

VIP

23 listed

Browse directory →

PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.

More Neuro & Cognitive Comparisons

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Educational research tools — not medical advice.