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.

Is Vasopressin FDA approved?

Vasopressin is FDA approved (FDA status current as of 2014-04-17). This regulatory status is provided for research and educational context only.

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 Vasopressin administered in research settings?

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

Home›Research›Compare›Dalargin vs Vasopressin

Peptide Comparison

Dalargin vs Vasopressin

Q: What is the difference between Dalargin and Vasopressin?

Dalargin: Binds delta and mu opioid receptors with peripheral preference due to limited CNS penetration. Vasopressin: Neuropeptide binding V1aR (social behavior/memory, vasoconstriction), V1bR (ACTH/stress), V2R (antidiuretic); enhances hippocampal memory consolidation and social recognition

Both are Neuro & Cognitive peptides.

Dalargin

Leu-enkephalin-Arg

RecoveryNot EvaluatedResearch Only

No providers listed yet

Full Dalargin profile →

Vasopressin

ADH

CognitiveFDA ApprovedPrescription

Half-life: 10-20 minutes

4 providers listed

Full Vasopressin profile →

Bottom line

Vasopressin is FDA-approved, while Dalargin is not evaluated — the clearest structural difference between them.

Quick Verdict

Dalargin

Evidence

Preclinical

Half-life

—

Vasopressin

Evidence

Established Clinical

Half-life

10-20 minutes

Which One Should You Choose?

Your goal	Better option
Stronger clinical evidence	Vasopressin
Further along in FDA review	Vasopressin
More provider options (0 vs 4)	Vasopressin

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

Side-by-Side Comparison

Dalargin

Vasopressin

Mechanism Family

Neuro & Cognitive

Half-life

—

10-20 minutes

FDA Status

not evaluated

approved

Admin Routes

subcutaneous, intravenous

intranasal, subcutaneous, intravenous

Availability

Research Only

Prescription

Providers

None listed

4 listed

FDA Update

—

Apr 2014

Avail. Notes

—

FDA-approved vasopressin injection. Brand: Vasostrict (NDA 204485, Apr 2014). Indicated for vasodilatory shock. As an FDA-approved drug with a USP monograph, it is compounded via the approved-drug / monograph route rather than the 503A bulk-substances list. Prescription only.

Research Evidence

Dalargin

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

Vasopressin

Established ClinicalMeta-analysis · 13 key studies · most recent 2026

Research Citations

Dalargin

Animal2009 · Bulletin of Experimental Biology and Medicine

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

Vasopressin

Meta-analysis2026 · Front Endocrinol (Lausanne)

The hypothalamic-neurohypophyseal system in preeclampsia: a systematic review with a subgroup meta-analysis o…

Meta-analysis2026 · Front Endocrinol (Lausanne)

The hypothalamic-neurohypophyseal system in preeclampsia: a systematic review with a subgroup meta-analysis o…

Cohort2026 · Sci Rep

Effects of septic shock vasopressors on the fitness of Escherichia coli.

Cohort2026 · Prog Neurobiol

Tracing the impact of electrophysiological studies of magnocellular neurons.

+9 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 Vasopressin

Neuropeptide binding V1aR (social behavior/memory, vasoconstriction), V1bR (ACTH/stress), V2R (antidiuretic); enhances hippocampal memory consolidation and social recognition

Research Areas

memory consolidationsocial memoryfluid retentionvasoconstriction

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.

Vasopressin

Reported (Unverified — Pending Clinical Review)

hypertensioncoronary artery diseasehyponatremia riskheart failure

No established clinical contraindications

Suggested Monitoring

Under clinical review

Being verified by our medical team before we display monitoring guidance for this peptide.

Find Providers

Where to source these peptides

Providers offering

Dalargin

Browse directory →

Providers offering

Vasopressin

4 listed

Browse directory →

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

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Educational research tools — not medical advice.