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Drug interactions

Lofexidine + Lorcaserin

Severity: Moderate

Lofexidine and Lorcaserin: 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

Lorcaserin was reported to inhibit CYP2D6 and may raise lofexidine levels, increasing hypotension, bradycardia and sedation. Lorcaserin has been withdrawn from many markets.

What this interaction means in plain words

Lofexidine and Lorcaserin 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: Low

Why it happens

CYP2D6 inhibition reducing lofexidine clearance.

What to do

Monitor blood pressure and heart rate, and consider a lofexidine dose reduction if symptoms occur.

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 Lofexidine with Lorcaserin?

MediHelp rates the interaction as moderate. Lofexidine and Lorcaserin 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. Lorcaserin was reported to inhibit CYP2D6 and may raise lofexidine levels, increasing hypotension, bradycardia and sedation. Lorcaserin has been withdrawn from many markets.

How serious is the interaction between Lofexidine and Lorcaserin?

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 blood pressure and heart rate, and consider a lofexidine dose reduction if symptoms occur.

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.

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