Drug interactions
Atomoxetine + Foscarnet
Severity: Moderate
Atomoxetine and Foscarnet: 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
Atomoxetine may modestly prolong the QT interval, and foscarnet-induced electrolyte disturbances can add to this effect. Arrhythmia risk is increased, particularly in patients with cardiac disease.
What this interaction means in plain words
Atomoxetine and Foscarnet 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.
Atomoxetine belongs to Central Nervous System; Foscarnet belongs to Anti Virals.
Why it happens
Additive QT prolongation with foscarnet-related electrolyte depletion.
What to do
Monitor ECG and correct electrolytes; consider alternatives in patients with long QT or structural heart disease.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Atomoxetine and Foscarnet, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Foscarnet
- Cidofovir + Foscarnet Contraindicated
- Foscarnet + Pimozide Contraindicated
- Foscarnet + Thioridazine Contraindicated
- Foscarnet + Vandetanib Contraindicated
- Adagrasib + Foscarnet Major
- Adefovir + Foscarnet Major
Other interactions of Atomoxetine
- Atomoxetine + Isocarboxazid Contraindicated
- Atomoxetine + Linezolid Contraindicated
- Atomoxetine + Phenelzine Contraindicated
- Atomoxetine + Procarbazine Contraindicated
- Atomoxetine + Rasagiline Contraindicated
- Atomoxetine + Selegiline Contraindicated
Frequently asked questions
Can I take Atomoxetine with Foscarnet?
MediHelp rates the interaction as moderate. Atomoxetine and Foscarnet 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. Atomoxetine may modestly prolong the QT interval, and foscarnet-induced electrolyte disturbances can add to this effect. Arrhythmia risk is increased, particularly in patients with cardiac disease.
How serious is the interaction between Atomoxetine and Foscarnet?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and correct electrolytes; consider alternatives in patients with long QT or structural heart disease.
What other medicines interact with Foscarnet?
MediHelp also lists interactions of Foscarnet with, for example, Cidofovir, Pimozide, Thioridazine. The full list is on the Foscarnet page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
