Norepinephrine (medication)

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Norepinephrine
Skeletal formula of noradrenaline
Ball-and-stick model of the zwitterionic form of noradrenaline found in the crystal structure[1]
Clinical data
Trade namesLevarterenol, Levophed, Norepin, other
Other namesNoradrenaline
(R)-(–)-Norepinephrine
l-1-(3,4-Dihydroxyphenyl)-2-aminoethanol
AHFS/Drugs.comMonograph
License data
Pregnancy
category
  • AU: B3
COMT
Legal status
Legal status
COMT
ExcretionUrine (84–96%)
Identifiers
  • 4-[(1R)-2-amino-1-hydroxyethyl]benzene-1,2-diol
JSmol)
Density1.397±0.06 g/cm3
Melting point217 °C (423 °F) (decomposes)
Boiling point442.6 °C (828.7 °F) ±40.0°C
  • Oc1ccc(cc1O)[C@@H](O)CN
  • InChI=1S/C8H11NO3/c9-4-8(12)5-1-2-6(10)7(11)3-5/h1-3,8,10-12H,4,9H2/t8-/m0/s1 checkY
  • Key:SFLSHLFXELFNJZ-QMMMGPOBSA-N checkY
  (verify)

Norepinephrine, also known as noradrenaline, is a

intravenous fluids.[3] It is the same molecule as the hormone and neurotransmitter norepinephrine.[2] It is given by slow injection into a vein.[2]

Common side effects include headache, slow heart rate, and

Norepinephrine was discovered in 1946 and was approved for medical use in the United States in 1950.

Medical uses

Norepinephrine is used mainly as a sympathomimetic drug to treat people in vasodilatory shock states such as septic shock and neurogenic shock, while showing fewer adverse side-effects compared to dopamine treatment.[5][6]

Mechanism of action

It stimulates

peripheral vascular resistance and resulted in increased blood pressure. This effect also reduces the blood supply to gastrointestinal tract and kidneys. Norepinephrine acts on beta-1 adrenergic receptors, causing increase in heart rate and cardiac output.[7] However, the elevation in heart rate is only transient, as baroreceptor response to the rise in blood pressure as well as enhanced vagal tone ultimately result in a sustained decrease in heart rate.[8] Norepinephrine acts more on alpha receptors than the beta receptors.[9]

Names

Norepinephrine is the

INN while noradrenaline is the BAN
.

References

External links