Drug interactions
Amoxapine + Clonidine
Severity: Major
Amoxapine and Clonidine: 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
Tricyclic antidepressants such as amoxapine can blunt the antihypertensive effect of clonidine. Blood pressure control may be lost and hypertension may occur.
What this interaction means in plain words
Amoxapine and Clonidine 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.
Why it happens
Pharmacodynamic antagonism, with tricyclic-mediated blockade of noradrenaline reuptake and alpha-2 effects opposing clonidine.
What to do
Monitor blood pressure closely and consider another antihypertensive or antidepressant. Be aware that stopping clonidine while on a tricyclic may increase rebound hypertension risk.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Amoxapine and Clonidine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Clonidine
- Acebutolol + Clonidine Major
- Amifostine + Clonidine Major
- Amiodarone + Clonidine Major
- Atenolol-chlorthalidone + Clonidine Major
- Atenolol + Clonidine Major
- Betaxolol + Clonidine Major
Frequently asked questions
Can I take Amoxapine with Clonidine?
MediHelp rates the interaction as major. Amoxapine and Clonidine 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. Tricyclic antidepressants such as amoxapine can blunt the antihypertensive effect of clonidine. Blood pressure control may be lost and hypertension may occur.
How serious is the interaction between Amoxapine and Clonidine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure closely and consider another antihypertensive or antidepressant. Be aware that stopping clonidine while on a tricyclic may increase rebound hypertension risk.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
