Drug interactions
Desvenlafaxine + Iobenguane i
Severity: Major
Desvenlafaxine and Iobenguane i: major 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
Desvenlafaxine inhibits norepinephrine reuptake and may reduce uptake of iobenguane into target tissue. This can cause a false-negative or poor-quality scan.
What this interaction means in plain words
Desvenlafaxine and Iobenguane i can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Inhibition of the norepinephrine transporter reduces cellular uptake of iobenguane.
What to do
Where feasible, stop desvenlafaxine for about 5 half-lives before imaging, tapering safely. Otherwise reschedule the study.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Desvenlafaxine
- Desvenlafaxine + Isocarboxazid Contraindicated
- Desvenlafaxine + Methylene blue Contraindicated
- Desvenlafaxine + Phenelzine Contraindicated
- Desvenlafaxine + Rasagiline Contraindicated
- Desvenlafaxine + Safinamide Contraindicated
- Desvenlafaxine + Selegiline Contraindicated
Frequently asked questions
Can I take Desvenlafaxine with Iobenguane i?
MediHelp rates the interaction as major. Desvenlafaxine and Iobenguane i can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Desvenlafaxine inhibits norepinephrine reuptake and may reduce uptake of iobenguane into target tissue. This can cause a false-negative or poor-quality scan.
How serious is the interaction between Desvenlafaxine and Iobenguane i?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Where feasible, stop desvenlafaxine for about 5 half-lives before imaging, tapering safely. Otherwise reschedule the study.
What other medicines interact with Desvenlafaxine?
MediHelp also lists interactions of Desvenlafaxine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Desvenlafaxine page.
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