Doctor insights on:
Levophed Norepinephrine Dopamine
Receptors: These three medications are used to support the heart and cardiovascular system ie. blood pressure and heart rate. They are known as sympathomimetics and have a similar response to what you would think of as adrenaline. Each has variable effect on either heart rate, heart function (in terms of strength of 'squeeze') and on blood vessels which would translate to higher blood pressure. ...Read more
Alters physiology: These are very simple answers to a complex question. Levophed (norepinephrine) increases blood pressure; Dopamine increases heart rate, blood pressure and cardiac function (contractility); Dobutamine increases cardiac contractility and heart rate. ...Read moreSee 1 more doctor answer
I was wondering what are the differences of levophed, (norepinephrine) dopamine and dobutamine in terms of their action?
You Asked for It----: Dobutamine- direct b1 receptor stimulant or agonist in the sympathetic nervous system. Levophed- vasoconstrictor peripherally (alpha adrenergic effects) and beta adrenergic stimulant at the level of the heart and coronary vessels dopamine- dual b1 and Alpha adrenergic effects. Useful in hypovolemic shock because of conservancy of renal blood flow. Also, works centrally in other complex ways. ...Read more
Catecholamines: Behavior is much more complex than neurotransmitter levels alone. But norepinephrine (ne) acts mainly in an area of your brainstem called the locus coeruleus. When released, ne triggers the stress response. Ne is also involved in pain, cognition, mood, emotions, movement and blood pressure. Dopamine is involved in regulating mood, pleasure, delusions, psychosis and drug abuse -- and more. ...Read more
Catecholamines: These are both catecholamines, synthesized from the Amino Acid tyrosine. Norepinephrine (ne) acts mainly in an area of your brainstem called the locus coeruleus -- triggering the stress response. Ne is also involved in pain, cognition, mood, emotions, movement and blood pressure. Dopamine is involved in regulating mood, pleasure, delusions, psychosis and drug abuse -- and more. ...Read more
Wellbutrin (bupropion): Wellbutrin (bupropion) acts by enhancing the levels of serotonin, dopamine, and norepinephrine at the site of each neurotransmitter. For this reason, it's an excellent medication choice for depression and executive functioning, such as conditions with attention and concentration impairments. However, due to its actions upon dopamine, it is relatively contraindicated in psychotic conditions. ...Read moreSee 1 more doctor answer
St Johns wort: Is a very potent herb and should not be used with other anti-depressants. ...Read more
Motivation: Actually, the 3 working in harmony.Get a more detailed answer ›
Sine seratonin depletes other nerotransmitters like dopamine, norepinephrine, and epinephrine...By "deplete" does it mean a permanent thing?
Not correct: Serotonin does not deplete other neurotransmitters, but there is a balance especially between Dopamine and serotonin. This balance is dynamic and constantly re-establishing itself. Unless there is damage to neurons (which there can be when abusing certain drugs) neurotransmitter changes would not be permanent. ...Read more
What p450 enzymes are inhibited/induced by seroquel, (quetiapine) and what does a dopamine/norepinephrine antagonist do? Reduce dopamine levels? Specifics please?
Neither: Seroquel (quetiapine) passes through the cyp450 3a4 pathway & is extensively metabolized, but it neither inhibits nor induces the pathway itself. On the other hand, it's metabolism may be significantly affected by other medications. For instance, Dilantin induces the pathway causing seroquel (quetiapine) to be rushed through the pathway, leading to less-effective, lower blood levels. Antagonists are blockers. ...Read moreSee 1 more doctor answer
14/male results/ catecholamine norm?
Norepinephrine, supine 136.0 pg/ml
* epinephrine, <10 pg/ml
*dopamine, <10 pg/ml
norepinephrine, stand 457.0 pg/ml
epinephrine, 14.0 pg/ml
dopamine, 16.0 pg/m
Please explain what levels of neurotransmitters a tourette patient has to have, serotonin, dopamine, adrenalin & norepinephrine, thank you?
Go after it!: Kenneth, that's a great question. I encourage you to get a Ph.D. in neurobiology and devote your career to finding out the answer, because if you do, you will win about three Nobel Prizes in Medicine. In fact, you'll win if you can find an effective way to measure?neurotransmitters in the living brain all at once for more than a minute at a stretch AT ALL, let alone for Tourette's. ...Read more
How does strattera (atomoxetine) help for ADHD if it is a norepinephrine reuptake inhibitor , without affecting dopamine ?
Strattera (atomoxetine) blocks : Reuptake of norepinephrine but rat studies show that it also raises levels of Dopamine in the prefrontal cortex 3x without raising levels in the nucleus accumbens that controls addiction and where the other stimulant drugs also act. Dr. Stephen stahl calls some of the cells in the prefrontal cortex promiscuous because they contain both norepinephrine and dopamine. There is more to be learned. ...Read moreSee 1 more doctor answer
Can Xanax (alprazolam) cause brain fog? Also can low norepinephrine cause brain fog? I feel as if my dopamine is fine anything besides stims help with "fog"?
"Low"? "Normal"?: You're treating the human brain like a casserole. You're reducing to absurd simplicity an organ whose complexity surpasses human understanding. Neurotransmitters SO don't work that way. There is no "low" or "normal" the way you' think of it. Neurochemistry isn't a New Age fad. Your awareness of it is commendable but you labor under major misconceptions. You can learn more. It's not beyond you. ...Read moreSee 1 more doctor answer
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