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Nesiritide (Natrecor) is the recombinant form of the 32 amino acid human B-type natriuretic peptide, which is normally produced by the ventricular myocardium. Nesiritide works to facilitate cardiovascular fluid homeostasis through counterregulation of the renin-angiotensin-aldoesterone system, stimulating cyclic guanosine monophosphate, leading to smooth muscle cell relaxation.
Neseritide was believed initially to be beneficial for acute decompensated congestive heart failure. It received approval from the United States' Food and Drug Administration for this purpose in 2001 after initial non-approval. In July 2011 the results of the largest study so far for nesiritide was published in The New England Journal of Medicine; it showed that nesiritide was not associated with a change in mortality or re-hospitalizations.
Nesiritide is only administered intravenously, usually by bolus, followed by IV infusion. For most adults and the elderly, a normal dosage is 2 µg/kg followed by a continuous IV infusion of 0.01 µg/kg/min. This may be increased every three hours for a maximum of 0.03 µg/kg/min.
Common side effects include:
More rare side effects include:
- O'Connor (2011). "Effect of nesiritide in patients with acute decompensated heart failure". New England Journal of Medicine 365 (32): 32–43. doi:10.1056/NEJMoa1100171. PMID 21732835.
Science or Fiction: Use of Nesiritide as a First-Line Agent? John A. Noviasky, Pharm.D., Michael Kelberman, M.D., Karen M. Whalen, B.S., Roy Guharoy, Pharm.D., William Darko, Pharm.D.
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