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Doctor insights on: Dobutamine Act Receptor

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Why does dobutamine act on beta 1 receptor on renal vessels?

Why does dobutamine act on beta 1 receptor on renal vessels?

All over the body: Because doputamine acts on beta receptors all over the body. And Dobutamine is a partial vaso dilator, it decreases systemic vascular resistance, svr. It can mediate sympathetic nerve activity. ...Read more

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Receptor (Definition)

An organ, cell or molecule that accepts an outside signal and causes an internal change. Eyes receive light, touch receptors send messages to the brain when stimulated by pressure and estrogen receptors bind Estradiol causing responses of normal breast, ovary and uterus cells to rising and falling levels of the female steroid hormones. Most of the time "receptor" refers to one ...Read more


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How does geodon (ziprasidone) work? It acts on many receptors and transporters..

How does geodon (ziprasidone) work? It acts on many receptors and transporters..

Geodon (ziprasidone): It has high affinity for dopamine, serotonin & alpha-1 adrenergic receptors, & moderate affinity for histamine h-1 receptors. It also inhibits synaptic reuptake of serotonin & norepinephrine. Blockage of d2 & 5-ht2a receptors attributes to its effects on positive psychotic symptoms. Inhibition of reuptake of serotonin & norepinephrine attributes to its effect on alleviating negative symptoms. ...Read more

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Clomid (clomiphene) acts by blocking estrogen receptors,thus endometrium will thin out,how this can affect pregnancy rate and implantation of fertilized egg?

Clomid (clomiphene) acts by blocking estrogen receptors,thus endometrium will thin out,how this can affect pregnancy rate and implantation of fertilized egg?

Can effect: Thinning of the endometrial lining is one of the items monitored when fertility doctors give Clomid (clomiphene). This is also why it is only used for a few months in a row before stopping. Leutrozole is another option that can be used. ...Read more

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Is dopamine similar to dobutamine?

Yes and no: They are both catecholamines, a specific type of chemical class. In the body, there are different type of receptors in tissues which bind catechols with different effects. Dopamine and doubtamine have different affinities for different receptors and thus can have different effects. Kind of like different types of baking sugars...They are all sugars but are used for special purposes and functions. ...Read more

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Why is dobutamine given intravenously?

Why is dobutamine given intravenously?

No other form: Presently, there is no other form of Dobutamine on the market. Generally, when Dobutamine is used, one is seeking immediate action of the drug, if the drug was administered through just about any other route, it would take longer to act and the delay in action is not desirable. This of course excludes CHF patients on chronic Dobutamine pump, my first sentence is directed at them. ...Read more

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What are the affects of nitroprusside used in conjunction with dobutamine?

What are the affects of nitroprusside used in conjunction with dobutamine?

Depends on dosing: Dobutamine is an agent that helps the weak heart pump better by stimulating beta receptors in the heart. At lower doses it doesnt affect the blood vessels but higher doses it can also lower the tone of the ateries and makes it easier for the heart to pump. This tone is aka systemic vascular resistence. By lowering the svr the cariac out put will increase. Nipride (nitroprusside) has no beta stim effects only svr. ...Read more

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What is the difference between persantine and dobutamine?

Drugs for Heart Test: Chemical stress tests are used to diagnose heart artery blockage in people who cannot treadmill exercise. Persantine is injected IV and dilates normal blood vessels more than abnormal ones causing an ischemic defect on a nuclear image. Dobutamine is injected IV and increases the heart rate and contractility with muscle fed by a blocked artery not responding as well as normal muscle. ...Read more

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What is the treatment available for dobutamine extravasation?

What is the treatment available for dobutamine extravasation?

Phentolamine: This causes vasconstriction so that phentolamine can be injected into the area to counteract the vasoconstriction. Otherwise, pain medicine and elevated the arm can be of help to relieve swelling and pain. ...Read more

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How likely am I to panic while having a dobutamine stress test?

Possible: People suffering from panic disorder can develop panic attacks following triggers, people differ in their specific triggers. Could be increased heart rate, could be nausea or any other physical symptom of anxiety. So, if palpitation and rapid heart beat is usually a trigger for your panic, then see your psychiatrist so he can prepare you for the test to alleviate the risk of triggering an attack. ...Read more

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When should we choose dopamine over dobutamine in treating congestive cardiac failure?

When should we choose dopamine over dobutamine in treating congestive cardiac failure?

Sometimes use both: Dopamine has more affect on blood pressure (raises it). Dobutamine increases heart (myocardial) contractility so it makes the heart muscle beat stronger and subsequently increases cardiac output. They are often used together for people with heart failure and low bp. ...Read more

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I am going for a dobutamine stress echo cardiogram? What should I expect?

I am going for a dobutamine stress echo cardiogram? What should I expect?

Heart test: A cardiac sonographer will place electrodes on ur chest attached 2 an EKG monitor that charts ur heart’s electrical activity. They will perform a resting ekg, measure your resting heart rate & take your blood pressure. A dr or nurse will give the Dobutamine into ur IV while the they continue 2 obtain echo images. It will cause your heart to react as if you were exercising, your heart will go fast. ...Read more

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What is dobutamine used for in the body?

See below: Dobutamine is used when there is a poor contraction of the heart muscle either associated or not with pulmonary hypertension and low blood pressure. Dobutamine is used to increase cardiac output and muscle contractivity. ...Read more

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What is dobutrex (dobutamine) prescribed for?

Dobutamine: IV medication given primarily for congestive heart failure from heart muscle weakening. This increases the ability of the heart to contract and increase blood flow throughout the body helping with heart failure symptoms. Used with diuretic therapy (Lasix) to get extra fluid/water out of the body. Used in hospital but can be used at home for chronic therapy for end-stage heart failure. ...Read more

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Dr. Elazer Edelman
313 doctors shared insights

Dobutamine (Definition)

Dobutamine is an inotrope which is a kind of heart ...Read more


Dr. Ira Katz
37 doctors shared insights

Dobutrex (Definition)

Dobutrex is an inotrope which is a kind of heart ...Read more