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Drug interactions

Chlordiazepoxide + Clonidine

Severity: Moderate

Chlordiazepoxide and Clonidine: 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

Clonidine and benzodiazepines both cause sedation, and clonidine also lowers blood pressure. Together they can cause excessive drowsiness, psychomotor impairment and hypotension.

What this interaction means in plain words

Chlordiazepoxide and Clonidine 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.

Chlordiazepoxide belongs to Central Nervous System; Clonidine belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive CNS depression via central alpha-2 agonism and GABA-A potentiation.

What to do

Use the lowest effective benzodiazepine dose and monitor sedation and blood pressure, especially in older adults. Avoid alcohol and other sedatives.

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 Chlordiazepoxide with Clonidine?

MediHelp rates the interaction as moderate. Chlordiazepoxide and Clonidine 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. Clonidine and benzodiazepines both cause sedation, and clonidine also lowers blood pressure. Together they can cause excessive drowsiness, psychomotor impairment and hypotension.

How serious is the interaction between Chlordiazepoxide and Clonidine?

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 benzodiazepine dose and monitor sedation and blood pressure, especially in older adults. Avoid alcohol and other sedatives.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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