Drug interactions
Clonidine + Nitroprusside
Severity: Moderate
Clonidine and Nitroprusside: moderate 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
Nitroprusside is a potent intravenous vasodilator, and clonidine adds blood-pressure-lowering effect through reduced sympathetic outflow. The combination may cause excessive hypotension, although it is sometimes used deliberately in hypertensive emergencies.
What this interaction means in plain words
Clonidine and Nitroprusside can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive hypotension from direct nitric oxide mediated vasodilation and central sympatholysis.
What to do
Titrate nitroprusside using continuous arterial blood pressure monitoring and expect lower dose requirements. Avoid abrupt withdrawal of clonidine because of rebound hypertension.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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
Frequently asked questions
Can I take Clonidine with Nitroprusside?
MediHelp rates the interaction as moderate. Clonidine and Nitroprusside can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Nitroprusside is a potent intravenous vasodilator, and clonidine adds blood-pressure-lowering effect through reduced sympathetic outflow. The combination may cause excessive hypotension, although it is sometimes used deliberately in hypertensive emergencies.
How serious is the interaction between Clonidine and Nitroprusside?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate nitroprusside using continuous arterial blood pressure monitoring and expect lower dose requirements. Avoid abrupt withdrawal of clonidine because of rebound hypertension.
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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