Drug interactions
Caffeine + Isoproterenol
Severity: Minor
Caffeine and Isoproterenol: minor 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
Both isoproterenol and caffeine are cardiac stimulants, and together they may increase heart rate and the likelihood of palpitations or arrhythmia. The effect is generally modest at usual caffeine intake.
What this interaction means in plain words
Caffeine and Isoproterenol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Caffeine belongs to Miscellaneous; Isoproterenol belongs to Respiratory.
Why it happens
Additive sympathomimetic cardiovascular stimulation: beta-agonism plus caffeine-mediated adenosine antagonism and phosphodiesterase inhibition.
What to do
Monitor heart rate and rhythm, and limit caffeine intake in patients receiving isoproterenol infusion.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Isoproterenol
Other interactions of Caffeine
- Caffeine + Ephedrine Major
- Caffeine + Fezolinetant Major
- Caffeine + Methylenedioxymethamphetamine Major
- Caffeine + Selegiline transdermal Major
- Adenosine + Caffeine Moderate
- Benzphetamine + Caffeine Moderate
Frequently asked questions
Can I take Caffeine with Isoproterenol?
MediHelp rates the interaction as minor. Caffeine and Isoproterenol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both isoproterenol and caffeine are cardiac stimulants, and together they may increase heart rate and the likelihood of palpitations or arrhythmia. The effect is generally modest at usual caffeine intake.
How serious is the interaction between Caffeine and Isoproterenol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate and rhythm, and limit caffeine intake in patients receiving isoproterenol infusion.
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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