Drug interactions
Dobutamine + Ziprasidone
Severity: Moderate
Dobutamine and Ziprasidone: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Ziprasidone prolongs the QT interval and has alpha-1 blocking effects, while dobutamine increases heart rate, can provoke ventricular arrhythmias and may lower potassium. Together they may increase the risk of torsades de pointes and hypotension.
What this interaction means in plain words
Dobutamine and Ziprasidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dobutamine belongs to Cardiovascular; Ziprasidone belongs to Central Nervous System.
Why it happens
Additive proarrhythmic effects from QT prolongation and catecholamine stimulation, with added hemodynamic effects.
What to do
Use continuous ECG monitoring, correct potassium and magnesium, and reassess the need for either drug if QTc lengthens.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Dobutamine
Other interactions of Ziprasidone
- Amiodarone + Ziprasidone Contraindicated
- Amitriptyline + Ziprasidone Contraindicated
- Arsenic trioxide + Ziprasidone Contraindicated
- Bedaquiline + Ziprasidone Contraindicated
- Chloroquine + Ziprasidone Contraindicated
- Citalopram + Ziprasidone Contraindicated
Frequently asked questions
Can I take Dobutamine with Ziprasidone?
MediHelp rates the interaction as moderate. Dobutamine and Ziprasidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Ziprasidone prolongs the QT interval and has alpha-1 blocking effects, while dobutamine increases heart rate, can provoke ventricular arrhythmias and may lower potassium. Together they may increase the risk of torsades de pointes and hypotension.
How serious is the interaction between Dobutamine and Ziprasidone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use continuous ECG monitoring, correct potassium and magnesium, and reassess the need for either drug if QTc lengthens.
What other medicines interact with Dobutamine?
MediHelp also lists interactions of Dobutamine with, for example, Budesonide-formoterol, Dihydroergotamine intranasal, Dihydroergotamine. The full list is on the Dobutamine page.
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