Epinephrine and Clonidine Interaction
Drug interaction information between Epinephrine and Clonidine.
Epinephrine and Clonidine have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Epinephrine and Clonidine. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
Clonidine can increase the way epinephrine affects your blood pressure and heart. This makes the epinephrine more powerful and could lead to an unexpected reaction.
What To Do
Your doctor should monitor your blood pressure and heart response closely if you are prescribed both of these medications.
FDA Label Information
( 7 .1) Drugs that potentiate the effects of epinephrine include sympathomimetics, beta blockers, tricyclic antidepressants, MAO inhibitors, COMT inhibitors, clonidine, doxapram, oxytocin, levothyroxine sodium, and certain antihistamines. ( 7 .4) 7.1 Drugs Antagonizing Pressor Effects of Epinephrine • α-blockers, such as phentolamine • Vasodilators, such as nitrates • Diuretics • Antihypertensives • Ergot alkaloids • Phenothiazine antipsychotics 7.2 Drugs Potentiating Pressor Effects of Epinephrine • Sympathomimetics • β-blockers, such as propranolol • Tricyclic anti-depressants •...
Epinephrine Also Interacts With
- Tranylcypromine major
- Carbidopa/Levodopa moderate
- Digoxin moderate
- Imipramine moderate
- Levothyroxine minor
Clonidine Also Interacts With
- Carvedilol moderate
- Metoprolol moderate
- Repaglinide moderate
- Sotalol moderate
- Amitriptyline minor
Frequently Asked Questions
Can I take Epinephrine and Clonidine together?
This is a minor interaction. Your doctor should monitor your blood pressure and heart response closely if you are prescribed both of these medications.
How serious is the interaction between Epinephrine and Clonidine?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Epinephrine and Clonidine interact?
Clonidine can increase the way epinephrine affects your blood pressure and heart. This makes the epinephrine more powerful and could lead to an unexpected reaction.
Understanding the Epinephrine and Clonidine Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Epinephrine belongs to the Adrenergic Agonist class and Clonidine belongs to the Central Alpha-2 Agonist class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Clonidine can increase the way epinephrine affects your blood pressure and heart. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Epinephrine has 28 total documented interactions on file in this dataset, and Clonidine has 29. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Your doctor should monitor your blood pressure and heart response closely if you are prescribed both of these medications. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Epinephrine or Clonidine based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.