Drug interactions
Flurazepam + Lofexidine
Severity: Moderate
Flurazepam 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
Flurazepam is a long-acting benzodiazepine whose active metabolites accumulate, so with lofexidine it can cause prolonged additive sedation, dizziness and hypotension. Older patients are at greater risk of falls and confusion.
What this interaction means in plain words
Flurazepam 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.
Why it happens
Additive CNS depression from GABA-A potentiation and central alpha-2 agonism.
What to do
Monitor sedation and blood pressure and use the lowest effective flurazepam dose. Counsel patients to avoid driving or hazardous activities.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Flurazepam 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.
Other interactions of Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Frequently asked questions
Can I take Flurazepam with Lofexidine?
MediHelp rates the interaction as moderate. Flurazepam 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. Flurazepam is a long-acting benzodiazepine whose active metabolites accumulate, so with lofexidine it can cause prolonged additive sedation, dizziness and hypotension. Older patients are at greater risk of falls and confusion.
How serious is the interaction between Flurazepam 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 and blood pressure and use the lowest effective flurazepam dose. Counsel patients to avoid driving or hazardous activities.
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.
