Norepinephrine Intravenous Administration – Evidence‑Based Recommendations

Administration Route

Central venous catheter infusion is preferred because it reduces the risk of tissue necrosis from extravasation. 1
Continuous hemodynamic monitoring should be employed whenever feasible to detect early complications. 2, 1

An alternative dosing range of 0.1–0.5 µg kg⁻¹ min⁻¹ (≈ 7–35 µg min⁻¹ for a 70‑kg adult) is supported for titration to blood‑pressure targets. 1

Target a mean arterial pressure (MAP) of 65 mm Hg in patients with septic shock. 3
Invasive arterial line monitoring is preferred for continuous blood‑pressure measurement when available. 3
Electrocardiographic monitoring should be applied when feasible to identify arrhythmias or ischemia. 2

If extravasation occurs, immediately infiltrate 5–10 mg phentolamine diluted in 10–15 mL saline at the site to prevent tissue necrosis. 1
Norepinephrine must not be mixed with sodium bicarbonate or other alkaline solutions, as catecholamines are inactivated in alkaline environments. 1

Norepinephrine is the first‑choice vasopressor for septic shock and severe hypotension (systolic BP < 70 mm Hg) characterized by low total peripheral resistance. 1, 3
It is relatively contraindicated in hypovolemia; volume status should be optimized before initiating therapy. 1
The drug may increase myocardial oxygen consumption, therefore it should be used cautiously in patients with ischemic heart disease. 1
While norepinephrine typically causes renal and mesenteric vasoconstriction, in sepsis it can enhance renal blood flow and urine output. 1