Dopamine (intravenous)

What dopamine hydrochloride is and how it works

Dopamine (given intravenously) is a catecholamine used to correct dangerously low blood pressure and poor blood flow in shock and other critical-care emergencies. Its effect depends on the dose: low doses widen blood vessels in the kidneys and gut, medium doses strengthen and speed up the heartbeat, and higher doses constrict blood vessels to raise blood pressure. It is administered only in hospital critical-care settings. (1) (2) (3)

Dopamine is given exclusively by healthcare professionals in an intensive care unit, emergency department, or operating theatre. It is not a medicine you can take yourself, and it is not available for home use or through a pharmacy.

Mechanism of action: how dopamine hydrochloride works

Dopamine is a direct-acting catecholamine and natural precursor of noradrenaline and adrenaline, with dose-dependent effects: at low doses (about 0.5-2 mcg/kg/min) it acts on dopaminergic receptors causing renal/mesenteric vasodilation; at moderate doses (about 2-10 mcg/kg/min) it activates beta-1 receptors, increasing cardiac output and heart rate; at higher doses it activates alpha-adrenergic receptors, causing vasoconstriction and raising blood pressure. It is metabolised in tissues and blood by MAO and COMT. (1) (2) (3)

What dopamine hydrochloride is used for

Before taking dopamine hydrochloride

Do not take / not appropriate for

• Do not use dopamine in patients with phaeochromocytoma (a tumour that can already raise catecholamine levels), as it can cause a dangerous additive rise in blood pressure. (all indications) (1) (2) (3)
• Do not use in patients with uncorrected atrial or ventricular tachyarrhythmias, or ventricular fibrillation. (all indications) (2) (3)
• Do not use together with cyclopropane or halogenated hydrocarbon anaesthetics, because of the risk of serious ventricular arrhythmias or severe hypertension. (perioperative) (2) (3)
• Do not use together with ergotamine or other ergot alkaloids, because of the risk of excessive vasoconstriction, severe hypertension, and rupture of cerebral blood vessels. (all indications) (3)
• Do not use in patients with hyperthyroidism without specialist caution. (all indications) (2) (3)

Tell your clinician about

• Clinicians must ensure hypovolaemia (low blood volume) is corrected first, with a plasma expander, whole blood, or plasma as appropriate.
• Assess for peripheral vascular disease (atherosclerosis, Buerger's disease, Raynaud's disease, diabetic endarteritis) or cold injury/frostbite, which increase the risk of ischaemia and gangrene.
• Check for concomitant monoamine oxidase inhibitors (MAOIs, or use within the previous 2-3 weeks), which require a substantially reduced starting dose (about 1/10th usual).
• Check for concurrent IV phenytoin, which can cause sudden, dose-dependent hypotension, bradycardia, and possibly cardiac arrest.
• Check for tricyclic antidepressants and digitalis glycosides, which can increase cardiovascular risk (arrhythmias, severe hypertension, hyperpyrexia).
• Pregnancy: life-sustaining therapy for shock should not be withheld; limited data exist on effects on the fetus.
• Pediatric use differs by country: the US label describes use from birth through adolescence, while the UK and New Zealand labels state that pediatric safety and effectiveness have not been established.

How to take dopamine hydrochloride

• Dopamine is given as a continuous intravenous infusion by a trained clinician in a hospital setting. It must be diluted before use and must never be added to alkaline solutions such as sodium bicarbonate, which inactivate it.
• The infusion is typically started at 2-5 mcg/kg/min and adjusted based on the patient's haemodynamic response; in more seriously ill patients, a clinician may start at around 5 mcg/kg/min and increase in 5-10 mcg/kg/min increments up to 20-50 mcg/kg/min as needed.
• Blood pressure, ECG, urine output, and peripheral perfusion are monitored continuously during the infusion.
• The infusion is given into a large vein (the antecubital fossa is preferred) to reduce the risk of extravasation. The infusion site is checked frequently.
• The infusion must be tapered gradually when discontinuing; sudden cessation can cause marked hypotension.

Procedures and treatment changes

Tell the treating team before surgery, procedures, or any medicine change. Do not alter treatment without the responsible clinician. (1) (2) (3) (4) (5) (6)

Missed dose

Not applicable. Dopamine is a continuous intravenous infusion under continuous monitoring. Any interruption is managed by the clinical team immediately.

Overdose

Overdose may cause an excessive rise in blood pressure. The clinical team will reduce or temporarily stop the infusion; because dopamine's effect wears off quickly, no other treatment is usually needed. If effects persist, an alpha-adrenergic blocking agent such as phentolamine may be considered. (1) (2)

Side effects

Dopamine's side effects are related to its dose-dependent cardiovascular and vasoconstrictive actions. The most serious risk, as with other IV vasopressors, is tissue ischaemia and necrosis from extravasation.

Serious warnings

Interactions

Pregnancy, breastfeeding, kidney/liver function, age

Monitoring

Before starting

• Confirm the need for vasopressor/inotrope support and correct hypovolaemia with a plasma expander, whole blood, or plasma.
• Ensure appropriate intravenous access (large vein, antecubital fossa preferred) and a properly diluted solution, never mixed with alkaline solutions.
• Review concomitant medications, especially MAOIs, IV phenytoin, ergot alkaloids, and anaesthetic agents.
• Establish baseline blood pressure, heart rate, ECG, urine output, and peripheral perfusion.

During treatment

• Continuously monitor blood pressure, ECG, urine output, and peripheral tissue perfusion.
• Inspect the infusion site regularly for signs of extravasation; if suspected, stop the infusion and give the phentolamine antidote.
• Watch for a disproportionate rise in diastolic pressure (a marked fall in pulse pressure), which may indicate excessive dosage and should prompt a rate reduction.
• Adjust the infusion rate according to haemodynamic response, aiming for the lowest dose that maintains adequate perfusion.

Storage

Storage conditions vary by manufacturer and product. Diluted infusion solutions have been shown to be stable for 24 hours under specific dilution conditions; refer to the specific product labelling for exact storage and stability information.

Frequently asked questions

References

1. DOPAMINE HYDROCHLORIDE injection, for intravenous use (Initial U.S. Approval: 1974)U.S. Food and Drug Administration (via DailyMed) · United States · accessed 2026-07-31 · source 1
2. Dopamine Hydrochloride 40mg/ml Concentrate for Solution for Infusion - Summary of Product Characteristicselectronic Medicines Compendium (UK) · United Kingdom · accessed 2026-07-31 · source 2
3. New Zealand Data Sheet - Sterile Dopamine Concentrate BP (Max Health Ltd) 200mg/5mLMedsafe, New Zealand Medicines and Medical Devices Safety Authority · New Zealand · accessed 2026-07-31 · source 3
4. Dopamine medicinal product entry (brands: Dopamine Hydrochloride Sterile (DBL), Dopamine (Juno))healthdirect Australia (Australian Government-funded consumer health information service) · Australia · accessed 2026-07-31 · source 4
5. DOPAMINE JUNO dopamine hydrochloride 200 mg/5 mL concentrated injection ampoules - ARTG entry 332320Therapeutic Goods Administration · Australia · accessed 2026-07-31 · source 5
6. Health Canada Drug Product Database API query results for brand name 'dopamine'Health Canada (Drug Product Database, official public API) · Canada · accessed 2026-07-31 · source 6
7. Centralised authorisation search - no dopamine hydrochloride entryEuropean Medicines Agency · European Union · accessed 2026-07-31 · source 7

Brand names by country

Single-ingredient dopamine hydrochloride names are shown separately by country. Product availability, strengths, and supply rules can change; combination products are not included here.

Priority countries