Drug interactions
Fostemsavir + Telavancin
Severity: Minor
Fostemsavir and Telavancin: minor 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
Telavancin can prolong the QTc interval, and fostemsavir has been linked to QTc prolongation only at supratherapeutic doses. The combined effect at standard doses is probably small but could matter in patients with other risk factors.
What this interaction means in plain words
Fostemsavir and Telavancin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Fostemsavir belongs to Anti Virals; Telavancin belongs to Anti Bacterial.
Why it happens
Possible additive QT prolongation.
What to do
Use recommended fostemsavir doses and check ECG and electrolytes in patients with cardiac risk factors.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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 Fostemsavir
- Apalutamide + Fostemsavir Contraindicated
- Carbamazepine + Fostemsavir Contraindicated
- Enzalutamide + Fostemsavir Contraindicated
- Fostemsavir + Mitotane Contraindicated
- Fostemsavir + Phenytoin Contraindicated
- Fostemsavir + Rifampicin Contraindicated
Frequently asked questions
Can I take Fostemsavir with Telavancin?
MediHelp rates the interaction as minor. Fostemsavir and Telavancin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Telavancin can prolong the QTc interval, and fostemsavir has been linked to QTc prolongation only at supratherapeutic doses. The combined effect at standard doses is probably small but could matter in patients with other risk factors.
How serious is the interaction between Fostemsavir and Telavancin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use recommended fostemsavir doses and check ECG and electrolytes in patients with cardiac risk factors.
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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