[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Pharmacology](https://durgical.com/en/pharmacology/) › [Vasopressors and inotropes](https://durgical.com/en/pharmacology/classes/vasopressors-and-inotropes/) › Dobutamine

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# Dobutamine

An intravenous inotrope that strengthens the heartbeat in cardiogenic shock and decompensated heart failure, with little rise in blood pressure.

Updated 2026-11-01

- Class: [Vasopressors and inotropes](https://durgical.com/en/pharmacology/classes/vasopressors-and-inotropes/)
- Receptor: Beta-1 adrenergic receptor
- ATC code: C01CA07

## ⚠ High-alert medication

An error with this medicine can cause serious harm: double checks and protocols are used.

◎**Beta-1 adrenergic receptor**Dobutamine

ⓘ The figure shows dobutamine bound to the turkey beta-1 adrenergic receptor in complex with a Gs protein; the human receptor has the same binding pocket for catecholamines.

**Target in 3D:** Beta-1 adrenergic receptor. PDB structure 8DCR (RCSB PDB, public domain). [View the structure at RCSB PDB](https://www.rcsb.org/structure/8DCR) · Drag to rotate · pinch to zoom

## Mechanism of action

Dobutamine is a synthetic catecholamine, a racemic mixture whose isomers act on beta-1, beta-2 and alpha-1 receptors. The net effect is mainly beta-1 stimulation of the heart: more cAMP and calcium entry, stronger contraction and higher cardiac output. Alpha-1 constriction and beta-2 dilation largely cancel out, so resistance changes little.

- Dobutamine stimulates cardiac beta-1 receptors
- Gs raises cAMP and calcium entry into myocytes
- Contractility and cardiac output rise
- Vascular alpha and beta-2 effects largely cancel out

## Pharmacokinetics

**Metabolism**
Methylation of the catechol and conjugation

**Half-life**
About 2 minutes (label): the effect ends soon after stopping

**Onset and duration**
Within minutes of starting the infusion

## Indications

- Short-term inotropic support in cardiac decompensation from depressed contractility (heart failure, cardiogenic shock) [Heart failure →](https://durgical.com/en/conditions/heart-failure/)
- Pharmacological stress echocardiography

## Adverse effects

### Common

- Rise in heart rate and blood pressure
- Ventricular ectopic beats
- Palpitations, angina and chest pain
- Nausea, headache and shortness of breath
- Mild fall in serum potassium

### Serious (rare, important)

- Ventricular arrhythmias
- Faster ventricular response in atrial fibrillation (it facilitates AV conduction)
- Hypersensitivity reactions, including to the sulfite excipient

## Contraindications

- Hypertrophic obstructive cardiomyopathy (idiopathic hypertrophic subaortic stenosis)
- Prior hypersensitivity to dobutamine

## Key interactions

**Beta blockers**
Dobutamine may be ineffective after recent beta blockade

**Sodium bicarbonate or other alkaline solutions**
Physical incompatibility in the same line

## What is monitored

- Continuous ECG and blood pressure
- Heart rate and signs of ischaemia
- Serum potassium
- Urine output and signs of improved perfusion

## Administration and safety

- Intravenous infusion only, after dilution, by pump; a central line is preferred for long infusions.
- Do not mix with sodium bicarbonate or other alkaline solutions, and avoid mixing with other drugs in the same bag.
- Dobutamine and dopamine have look-alike names: read the label twice.
- Inspect the solution for particles and discolouration before use.

## Nursing care

- Before: check volume status; dobutamine does not replace correcting hypovolaemia.
- During: ECG, heart rate and blood pressure continuously; report new arrhythmias, chest pain or a sharp rise in heart rate.
- In atrial fibrillation, watch for a faster ventricular response.
- Check potassium and urine output.

## Pregnancy and breastfeeding

Human data are limited; it is used when the mother's circulation needs support.

## Memory aid

DOBUTamine DOes BUTt-kicking of the heart (beta-1), not of the vessels.

## Test yourself

Think of the answer, then tap the question to see it.

## What is the main haemodynamic effect of dobutamine?

A rise in contractility and cardiac output through beta-1 stimulation, with little change in vascular resistance.

## Why is dobutamine avoided in hypertrophic obstructive cardiomyopathy?

A stronger contraction worsens the dynamic outflow tract obstruction and can lower cardiac output.

## Which electrolyte can fall during a dobutamine infusion?

Potassium, because beta-2 stimulation shifts it into cells.

## Why is a dobutamine line kept away from sodium bicarbonate?

Dobutamine is physically incompatible with alkaline solutions and can be inactivated in the line.

[Add to my cards (4)](https://durgical.app/estudiar/?add=/en/pharmacology/dobutamine/)

## Related drugs

- [Dopamine](https://durgical.com/en/pharmacology/dopamine/)
- [Milrinone](https://durgical.com/en/pharmacology/milrinone/)
- [Levosimendan](https://durgical.com/en/pharmacology/levosimendan/)
- [Norepinephrine](https://durgical.com/en/pharmacology/norepinephrine/)

## Related conditions

- [Heart failure](https://durgical.com/en/conditions/heart-failure/)

[← Back to the class: Vasopressors and inotropes](https://durgical.com/en/pharmacology/classes/vasopressors-and-inotropes/)

Educational content on how drugs work; not a prescribing guide and no substitute for a health professional's advice. No doses are given.

Sources: [DailyMed - DOBUTAMINE injection, solution, concentrate](https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=89becb0c-da60-4f43-0a98-29ff7a9eca58) (DailyMed (U.S. National Library of Medicine), 2026); [ATCDDD - ATC/DDD Index](https://atcddd.fhi.no/atc_ddd_index/?code=C01CA07) (WHO Collaborating Centre for Drug Statistics Methodology, 2026); Farmacología básica y clínica (Katzung), cap. 9 (McGraw Hill, 2025).

## **Spotted a mistake?** We are always improving for the community. Tell us what is wrong and our team will review it. Report a mistake

Representative model, for educational purposes only.

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Source: https://durgical.com/en/pharmacology/dobutamine/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/pharmacology/dobutamine/