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Drug interactions

Belladonna and opium + Lofexidine

Severity: Moderate

Belladonna and opium and Lofexidine: 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

The opium component adds CNS and respiratory depression to the sedative and hypotensive effects of lofexidine. Excessive sedation and bradycardia may result.

What this interaction means in plain words

Belladonna and opium and Lofexidine 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.

Evidence level: Moderate

Why it happens

Additive CNS depression from opioid action and central alpha-2 agonism.

What to do

Monitor sedation, respiratory rate and blood pressure, and use the lowest effective opioid dose.

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?

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

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Frequently asked questions

Can I take Belladonna and opium with Lofexidine?

MediHelp rates the interaction as moderate. Belladonna and opium and Lofexidine 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. The opium component adds CNS and respiratory depression to the sedative and hypotensive effects of lofexidine. Excessive sedation and bradycardia may result.

How serious is the interaction between Belladonna and opium and Lofexidine?

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 sedation, respiratory rate and blood pressure, and use the lowest effective opioid dose.

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.

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