Drug interactions
Isoproterenol + Marijuana
Severity: Moderate
Isoproterenol and Marijuana: 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
Cannabis can cause tachycardia and orthostatic changes, and isoproterenol is a potent beta-agonist that also raises heart rate. Combined use may produce additive tachycardia and palpitations, which matters in patients with cardiac disease.
What this interaction means in plain words
Isoproterenol and Marijuana 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 cardiovascular stimulation: cannabinoid-induced sympathetic activation and tachycardia combined with direct beta-adrenergic agonism.
What to do
Monitor heart rate, rhythm and blood pressure when isoproterenol is given to a patient using cannabis. Counsel patients with cardiac disease to avoid cannabis.
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 Isoproterenol
Frequently asked questions
Can I take Isoproterenol with Marijuana?
MediHelp rates the interaction as moderate. Isoproterenol and Marijuana 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. Cannabis can cause tachycardia and orthostatic changes, and isoproterenol is a potent beta-agonist that also raises heart rate. Combined use may produce additive tachycardia and palpitations, which matters in patients with cardiac disease.
How serious is the interaction between Isoproterenol and Marijuana?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate, rhythm and blood pressure when isoproterenol is given to a patient using cannabis. Counsel patients with cardiac disease to avoid cannabis.
What other medicines interact with Isoproterenol?
MediHelp also lists interactions of Isoproterenol with, for example, Adrenaline-articaine, Bisoprolol, Budesonide-formoterol. The full list is on the Isoproterenol page.
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