Drug interactions
Telavancin + Vemurafenib
Severity: Major
Telavancin and Vemurafenib: 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
Both drugs can prolong the QTc interval, so combining them may produce additive prolongation and raise the risk of torsades de pointes. The risk is greater with electrolyte disturbances, structural heart disease or other QT-prolonging drugs.
What this interaction means in plain words
Telavancin and Vemurafenib 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.
Telavancin belongs to Anti Bacterial; Vemurafenib belongs to Oncology.
Why it happens
Additive pharmacodynamic QT prolongation through effects on cardiac repolarization.
What to do
Avoid the combination where an alternative antibacterial exists; if unavoidable, obtain a baseline and follow-up ECG and correct potassium and magnesium levels.
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 Telavancin
- Telavancin + Thioridazine Contraindicated
- Adagrasib + Telavancin Major
- Amiodarone + Telavancin Major
- Amisulpride + Telavancin Major
- Anagrelide + Telavancin Major
- Arsenic trioxide + Telavancin Major
Other interactions of Vemurafenib
Frequently asked questions
Can I take Telavancin with Vemurafenib?
MediHelp rates the interaction as major. Telavancin and Vemurafenib 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. Both drugs can prolong the QTc interval, so combining them may produce additive prolongation and raise the risk of torsades de pointes. The risk is greater with electrolyte disturbances, structural heart disease or other QT-prolonging drugs.
How serious is the interaction between Telavancin and Vemurafenib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where an alternative antibacterial exists; if unavoidable, obtain a baseline and follow-up ECG and correct potassium and magnesium levels.
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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