norepinephrine
noun
nor·epi·neph·rine
ˈnȯr-ˌe-pə-ˈne-frən 
: a monoamine C8H11NO3 that is a neurotransmitter in postganglionic neurons of the sympathetic nervous system and in some parts of the central nervous system, is a vasopressor hormone of the adrenal medulla, and is a precursor of epinephrine in its major biosynthetic pathway
Examples of norepinephrine in a Sentence
Recent Examples on the Web
Both medications work by increasing dopamine and norepinephrine levels in the brain to help improve ADHD symptoms.
—
T'keyah Bazin, Pharmd, Verywell Health, 29 Oct. 2024
Research shows this medication can also significantly reduce tinnitus symptoms by improving blood flow to the inner ear.
Antidepressants: These medications help change chemicals in the brain like dopamine, serotonin, or norepinephrine to treat depression.
—Carley Millhone, Health, 20 Oct. 2024
By boosting levels of neurotransmitters like dopamine and norepinephrine, Adzenys helps improve focus, attention, and behavior in individuals with ADHD.3
Adzenys offers several benefits for individuals with ADHD, including flexible dosing options.
—T'keyah Bazin, Pharmd, Verywell Health, 20 Sep. 2024
Iron: Iron is a mineral necessary in numerous bodily functions, including the production of dopamine and norepinephrine.
—Kirstyn Hill, Pharmd, Mph, Health, 11 Sep. 2024
See all Example Sentences for norepinephrine 
These examples are automatically compiled from online sources to
illustrate current usage. Opinions expressed in the examples do not represent those of
Merriam-Webster or its editors.
Send us feedback
about these examples.
T'keyah Bazin, Pharmd, Verywell Health, 29 Oct. 2024
Research shows this medication can also significantly reduce tinnitus symptoms by improving blood flow to the inner ear.
Antidepressants: These medications help change chemicals in the brain like dopamine, serotonin, or norepinephrine to treat depression.
—Carley Millhone, Health, 20 Oct. 2024
By boosting levels of neurotransmitters like dopamine and norepinephrine, Adzenys helps improve focus, attention, and behavior in individuals with ADHD.3
Adzenys offers several benefits for individuals with ADHD, including flexible dosing options.
—T'keyah Bazin, Pharmd, Verywell Health, 20 Sep. 2024
Iron: Iron is a mineral necessary in numerous bodily functions, including the production of dopamine and norepinephrine.
—Kirstyn Hill, Pharmd, Mph, Health, 11 Sep. 2024
See all Example Sentences for norepinephrine
Dictionary Entries Near norepinephrine
Cite this Entry
“Norepinephrine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/norepinephrine. Accessed 17 Nov. 2024.
Copy CitationKids Definition
norepinephrine
noun
nor·epi·neph·rine
ˈnȯ(ə)r-ˌep-ə-ˈnef-rən
: a hormone that causes blood vessels to contract and helps to transmit nerve impulses in the sympathetic nervous system and in some parts of the central nervous system
Medical Definition
norepinephrine
noun
nor·epi·neph·rine
ˌnȯr-ˌep-ə-ˈnef-rən
-rēn
-rēn
: a catecholamine C8H11NO3 that is the chemical means of transmission across synapses in postganglionic neurons of the sympathetic nervous system and in some parts of the central nervous system, is a vasopressor hormone of the adrenal medulla, and is a precursor of epinephrine in its major biosynthetic pathway
called also arterenol, noradrenaline
see levophedLove words? Need even more definitions?
Merriam-Webster unabridged
Share