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Drug interactions

Clonidine + Flurazepam

Severity: Moderate

Clonidine and Flurazepam: 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

Both drugs depress the central nervous system, and their combination can increase drowsiness, dizziness, impaired coordination and hypotension. Flurazepam has long-acting active metabolites, so effects can persist, especially in older adults.

What this interaction means in plain words

Clonidine and Flurazepam 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 GABA-A potentiation by the benzodiazepine and central alpha-2 agonist sedation and hypotension from clonidine.

What to do

Use the lowest effective doses and monitor for next-day sedation and orthostatic hypotension. Consider a shorter-acting alternative in older patients.

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 Clonidine with Flurazepam?

MediHelp rates the interaction as moderate. Clonidine and Flurazepam 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. Both drugs depress the central nervous system, and their combination can increase drowsiness, dizziness, impaired coordination and hypotension. Flurazepam has long-acting active metabolites, so effects can persist, especially in older adults.

How serious is the interaction between Clonidine and Flurazepam?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for next-day sedation and orthostatic hypotension. Consider a shorter-acting alternative in older patients.

What other medicines interact with Clonidine?

MediHelp also lists interactions of Clonidine with, for example, Acebutolol, Amifostine, Amiodarone. The full list is on the Clonidine page.

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