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Drug interactions

Chlordiazepoxide-clidinium + Mirtazapine

Severity: Moderate

Chlordiazepoxide-clidinium and Mirtazapine: 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

Mirtazapine is sedating and combined with chlordiazepoxide can increase drowsiness and psychomotor impairment. Falls and impaired driving are more likely, particularly in older adults.

What this interaction means in plain words

Chlordiazepoxide-clidinium and Mirtazapine 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-clidinium belongs to Gastrointestinal Tract; Mirtazapine belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive CNS depression from histamine H1 blockade by mirtazapine and GABA-A potentiation by the benzodiazepine.

What to do

Use the lowest effective doses and monitor for oversedation and confusion. Advise patients to avoid alcohol and driving until tolerance is known.

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-clidinium with Mirtazapine?

MediHelp rates the interaction as moderate. Chlordiazepoxide-clidinium and Mirtazapine 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. Mirtazapine is sedating and combined with chlordiazepoxide can increase drowsiness and psychomotor impairment. Falls and impaired driving are more likely, particularly in older adults.

How serious is the interaction between Chlordiazepoxide-clidinium and Mirtazapine?

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 oversedation and confusion. Advise patients to avoid alcohol and driving until tolerance is known.

What other medicines interact with Chlordiazepoxide-clidinium?

MediHelp also lists interactions of Chlordiazepoxide-clidinium with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Chlordiazepoxide-clidinium page.

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