ANP (Atrial Natriuretic Peptide) vs DSIP

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

ANP (Atrial Natriuretic Peptide)

ANP is a cardiac hormone released by atrial myocytes in response to stretch. It promotes natriuresis, diuresis, and vasodilation, playing key roles in blood pressure and fluid regulation.

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DSIP

Delta Sleep-Inducing Peptide is a neuropeptide that promotes delta wave sleep, the deepest and most restorative phase of the sleep cycle.

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Side-by-Side Comparison

Aspect	ANP (Atrial Natriuretic Peptide)	DSIP
Dose Range	25 mcg–100 mcg	100 mcg–300 mcg
Frequency	1x daily	1x daily
Cycle Length	1–4 weeks	1–6 weeks
Route	subcutaneous	subcutaneous
Mechanism	Binds to natriuretic peptide receptors (NPR-A) to activate guanylyl cyclase, producing cGMP. This leads to vasodilation, increased kidney filtration, and inhibition of the renin-angiotensin-aldosterone system.	Modulates sleep-wake cycles by affecting sleep spindles and delta rhythms. May also influence stress hormones and have analgesic properties.
Typical Dosage	Clinical use: Carperitide (recombinant ANP) used in Japan for acute heart failure at 0.1mcg/kg/min IV infusion.	Typical dosing: 100-300mcg administered 30 minutes before sleep. Some protocols use it cyclically.
Administration	Intravenous infusion only for clinical applications. Short half-life (~2 minutes) requires continuous administration.	Subcutaneous or intramuscular injection before bedtime. Some users report better results with cyclical use.
Side Effects	Hypotension (dose-limiting), headache, nausea, and potential arrhythmias at high doses.	May cause grogginess upon waking, vivid dreams, or temporary headaches.
Best For	Recovery & Healing	Recovery & Healing Sleep Quality