ANP (Atrial Natriuretic Peptide) vs Teriparatide

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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Teriparatide

Teriparatide (Forteo) is recombinant human parathyroid hormone (1-34), FDA-approved for osteoporosis treatment. It's unique among osteoporosis drugs in that it stimulates new bone formation.

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Side-by-Side Comparison

Aspect	ANP (Atrial Natriuretic Peptide)	Teriparatide
Dose Range	25 mcg–100 mcg	20 mcg
Frequency	1x daily	1x daily
Cycle Length	1–4 weeks	52–104 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.	Intermittent PTH exposure paradoxically stimulates osteoblasts more than osteoclasts, resulting in net bone formation. Continuous exposure would cause bone loss, but pulsatile dosing builds bone.
Typical Dosage	Clinical use: Carperitide (recombinant ANP) used in Japan for acute heart failure at 0.1mcg/kg/min IV infusion.	20mcg subcutaneously once daily. Maximum treatment duration of 2 years due to theoretical osteosarcoma risk from rat studies.
Administration	Intravenous infusion only for clinical applications. Short half-life (~2 minutes) requires continuous administration.	Subcutaneous injection in thigh or abdomen once daily. Delivered via multi-dose pen. Should sit or lie down after injection due to orthostatic hypotension risk.
Side Effects	Hypotension (dose-limiting), headache, nausea, and potential arrhythmias at high doses.	Orthostatic hypotension, leg cramps, nausea, dizziness, headache, and injection site reactions. Transient hypercalcemia possible.
Best For	Recovery & Healing	Recovery & Healing