Drug interactions
Clonidine + Lofexidine
Severity: Major
Clonidine 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
Lofexidine is a centrally acting alpha-2 agonist like clonidine. Using both duplicates therapy and risks marked hypotension, bradycardia and sedation.
What this interaction means in plain words
Clonidine 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.
Clonidine belongs to Cardiovascular; Lofexidine belongs to Central Nervous System.
Why it happens
Duplicate alpha-2 adrenergic agonism producing additive sympatholytic effects.
What to do
Avoid concurrent use; choose one alpha-2 agonist. If transitioning, stop clonidine before starting lofexidine and monitor pulse and blood pressure.
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 Clonidine
- Acebutolol + Clonidine Major
- Amifostine + Clonidine Major
- Amiodarone + Clonidine Major
- Amoxapine + Clonidine Major
- Atenolol-chlorthalidone + Clonidine Major
- Atenolol + Clonidine Major
Other interactions of Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Frequently asked questions
Can I take Clonidine with Lofexidine?
MediHelp rates the interaction as major. Clonidine 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. Lofexidine is a centrally acting alpha-2 agonist like clonidine. Using both duplicates therapy and risks marked hypotension, bradycardia and sedation.
How serious is the interaction between Clonidine 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 concurrent use; choose one alpha-2 agonist. If transitioning, stop clonidine before starting lofexidine and monitor pulse and blood pressure.
What other medicines interact with Clonidine?
MediHelp also lists interactions of Clonidine with, for example, Acebutolol, Amifostine, Amiodarone. The full list is on the Clonidine page.
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