Skip to content

Drug interactions

Isoproterenol + Lofexidine

Severity: Minor

Isoproterenol and Lofexidine: 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

Lofexidine reduces sympathetic tone and heart rate, while isoproterenol is a beta agonist that increases heart rate and causes vasodilation. Effects may partly oppose each other, and the clinical significance is unclear.

What this interaction means in plain words

Isoproterenol and Lofexidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Isoproterenol belongs to Respiratory; Lofexidine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Opposing adrenergic effects: central alpha-2 agonism versus beta-adrenergic stimulation.

What to do

Monitor heart rate and blood pressure when isoproterenol is administered to patients on lofexidine.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Isoproterenol and Lofexidine, 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.

Frequently asked questions

Can I take Isoproterenol with Lofexidine?

MediHelp rates the interaction as minor. Isoproterenol and Lofexidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Lofexidine reduces sympathetic tone and heart rate, while isoproterenol is a beta agonist that increases heart rate and causes vasodilation. Effects may partly oppose each other, and the clinical significance is unclear.

How serious is the interaction between Isoproterenol and Lofexidine?

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 blood pressure when isoproterenol is administered to patients on lofexidine.

What other medicines interact with Lofexidine?

MediHelp also lists interactions of Lofexidine with, for example, Adagrasib, Alfuzosin, Amiodarone. The full list is on the Lofexidine 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.

Browse A–Z · Drug interactions

Get the app Sign in