Drug interactions
Carvedilol + Iodixanol
Severity: Moderate
Carvedilol and Iodixanol: 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
Beta-blocker therapy may increase the severity of anaphylactoid reactions to iodinated contrast. Such reactions may also respond poorly to standard epinephrine treatment. Hypotension and bronchospasm may be harder to reverse.
What this interaction means in plain words
Carvedilol and Iodixanol 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.
Why it happens
Beta-blockade antagonizes the adrenergic response to epinephrine used for treating contrast hypersensitivity reactions.
What to do
Assess risk before contrast, and have resuscitation equipment and glucagon available for refractory reactions. Do not stop carvedilol routinely, especially in heart failure, but consider the risk in patients with prior contrast reactions.
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 Carvedilol
Frequently asked questions
Can I take Carvedilol with Iodixanol?
MediHelp rates the interaction as moderate. Carvedilol and Iodixanol 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. Beta-blocker therapy may increase the severity of anaphylactoid reactions to iodinated contrast. Such reactions may also respond poorly to standard epinephrine treatment. Hypotension and bronchospasm may be harder to reverse.
How serious is the interaction between Carvedilol and Iodixanol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Assess risk before contrast, and have resuscitation equipment and glucagon available for refractory reactions. Do not stop carvedilol routinely, especially in heart failure, but consider the risk in patients with prior contrast reactions.
What other medicines interact with Carvedilol?
MediHelp also lists interactions of Carvedilol with, for example, Amifostine, Amiodarone, Arformoterol. The full list is on the Carvedilol page.
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