Drug interactions
Telavancin + Valbenazine
Severity: Moderate
Telavancin and Valbenazine: 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
Valbenazine can prolong the QT interval at higher exposures, and telavancin has similar effects. Concurrent use may add to the risk of ventricular arrhythmia.
What this interaction means in plain words
Telavancin and Valbenazine 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.
Telavancin belongs to Anti Bacterial; Valbenazine belongs to Central Nervous System.
Why it happens
Additive pharmacodynamic QT prolongation.
What to do
Perform an ECG at baseline and monitor the QTc during co-treatment. Correct electrolyte abnormalities and watch for palpitations or syncope.
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 Telavancin
- Telavancin + Thioridazine Contraindicated
- Adagrasib + Telavancin Major
- Amiodarone + Telavancin Major
- Amisulpride + Telavancin Major
- Anagrelide + Telavancin Major
- Arsenic trioxide + Telavancin Major
Other interactions of Valbenazine
- Deutetrabenazine + Valbenazine Contraindicated
- Tranylcypromine + Valbenazine Contraindicated
- Amiodarone + Valbenazine Major
- Amisulpride + Valbenazine Major
- Apalutamide + Valbenazine Major
- Carbamazepine + Valbenazine Major
Frequently asked questions
Can I take Telavancin with Valbenazine?
MediHelp rates the interaction as moderate. Telavancin and Valbenazine 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. Valbenazine can prolong the QT interval at higher exposures, and telavancin has similar effects. Concurrent use may add to the risk of ventricular arrhythmia.
How serious is the interaction between Telavancin and Valbenazine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Perform an ECG at baseline and monitor the QTc during co-treatment. Correct electrolyte abnormalities and watch for palpitations or syncope.
What other medicines interact with Telavancin?
MediHelp also lists interactions of Telavancin with, for example, Thioridazine, Adagrasib, Amiodarone. The full list is on the Telavancin page.
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