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Dobutamine 💊
Related Subjects: |Respiratory Failure |Non-invasive ventilation (NIV) |Haemodialysis |Dobutamine
💉 About
Dobutamine is a sympathomimetic drug used to increase cardiac output. ✅ Primarily used in CCU, HDU, and ITU settings under close monitoring. 🔗 Check BNF here
⚙️ Mode of Action
- Beta-1 adrenergic agonist → acts on cardiac muscle receptors
- Predominantly inotropic (↑ contractility) rather than chronotropic
- May increase heart rate
- Occasionally causes hypotension due to peripheral vasodilation
📌 Indications
- Cardiogenic shock 💔
- Septic shock 🦠 (as adjunct with other vasopressors)
💊 Dosing – Dobutamine
| Regimen | Details |
|---|---|
| 💉 IV Infusion |
• 2.5–10 micrograms/kg/min (preferably via central line)
• Titrate to clinical effect |
| ⚠️ Monitoring |
• Always use with invasive arterial BP monitoring
• Continuous ECG monitoring required |
| 🏥 Restrictions | • Use limited to CCU / ITU / HDU settings only |
⚠️ Interactions
- Can cause hypertension when combined with beta-blockers
🚫 Contraindications
- Severe valve obstruction (e.g., aortic stenosis)
- Uncontrolled hypertension
- Recent myocardial infarction (MI)
- Significant volume depletion
❗ Side Effects
- ↑ Blood pressure & heart rate → arrhythmias, myocardial ischaemia
- Hypotension (less common)
- Asthma exacerbation
- GI upset: nausea, vomiting
- Headache, angina
- Thrombocytopenia, injection site reactions
📚 References
| The content on this website is provided for educational and informational purposes only to support exam preparation (e.g., MLA, MRCP, USMLE) and learning. This is NOT medical advice, diagnosis, treatment, or professional guidance. It does not replace consultation with a qualified healthcare professional, official guidelines (e.g., NICE, GMC, BNF), or supervised clinical practice. Always verify information with current, authoritative sources. Makindo and its contributors accept no liability for any reliance on this content, including errors, omissions, or any resulting harm, loss, or consequences. By using this site, you agree to these terms. |
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