Drug interactions
Atenolol + Cocaine
Severity: Moderate
Atenolol and Cocaine: 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
Beta-blockade in the presence of cocaine can leave alpha-mediated vasoconstriction unopposed, which may raise blood pressure and worsen coronary vasospasm. This is a concern mainly with systemic cocaine use rather than topical anesthetic doses.
What this interaction means in plain words
Atenolol and Cocaine 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.
Atenolol belongs to Cardiovascular; Cocaine belongs to Central Nervous System.
Why it happens
Unopposed alpha-adrenergic stimulation after beta-blockade during cocaine-induced sympathetic activation.
What to do
Avoid beta-blockers in acute cocaine toxicity with chest pain or hypertension. With topical medical use, monitor blood pressure and chest symptoms.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Atenolol and Cocaine, 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 7 days on the web. No card needed.
Other interactions of Atenolol
- Amifostine + Atenolol Major
- Amiodarone + Atenolol Major
- Atenolol + Atenolol-chlorthalidone Major
- Atenolol + Betaxolol Major
- Atenolol + Bisoprolol Major
- Atenolol + Carvedilol Major
Other interactions of Cocaine
- Cocaine + Isocarboxazid Contraindicated
- Cocaine + Phenelzine Contraindicated
- Cocaine + Procarbazine Contraindicated
- Amitriptyline + Cocaine Major
- Bisoprolol + Cocaine Major
- Citalopram + Cocaine Major
Frequently asked questions
Can I take Atenolol with Cocaine?
MediHelp rates the interaction as moderate. Atenolol and Cocaine 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. Beta-blockade in the presence of cocaine can leave alpha-mediated vasoconstriction unopposed, which may raise blood pressure and worsen coronary vasospasm. This is a concern mainly with systemic cocaine use rather than topical anesthetic doses.
How serious is the interaction between Atenolol and Cocaine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid beta-blockers in acute cocaine toxicity with chest pain or hypertension. With topical medical use, monitor blood pressure and chest symptoms.
What other medicines interact with Atenolol?
MediHelp also lists interactions of Atenolol with, for example, Amifostine, Amiodarone, Atenolol-chlorthalidone. The full list is on the Atenolol 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.
