Drug interactions
Givinostat + Lofexidine
Severity: Major
Givinostat and Lofexidine: 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 lengthen the QT interval, so co-administration may increase the likelihood of torsades de pointes. Bradycardia caused by lofexidine can increase this risk.
What this interaction means in plain words
Givinostat and Lofexidine 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.
Givinostat belongs to Miscellaneous; Lofexidine belongs to Central Nervous System.
Why it happens
Additive pharmacodynamic QT prolongation.
What to do
Avoid if feasible; if the combination is needed, obtain ECGs at initiation and during treatment and correct electrolyte disturbances. Withhold the offending drug if QTc becomes markedly prolonged.
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 Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Other interactions of Givinostat
- Abiraterone + Givinostat Major
- Amiodarone + Givinostat Major
- Amisulpride + Givinostat Major
- Amitriptyline + Givinostat Major
- Anagrelide + Givinostat Major
- Asenapine + Givinostat Major
Frequently asked questions
Can I take Givinostat with Lofexidine?
MediHelp rates the interaction as major. Givinostat and Lofexidine 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 lengthen the QT interval, so co-administration may increase the likelihood of torsades de pointes. Bradycardia caused by lofexidine can increase this risk.
How serious is the interaction between Givinostat and Lofexidine?
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 if feasible; if the combination is needed, obtain ECGs at initiation and during treatment and correct electrolyte disturbances. Withhold the offending drug if QTc becomes markedly prolonged.
What other medicines interact with Lofexidine?
MediHelp also lists interactions of Lofexidine with, for example, Adagrasib, Alfuzosin, Amiodarone. The full list is on the Lofexidine page.
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