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Drug interactions

Chlordiazepoxide + Loprazolam

Severity: Major

Chlordiazepoxide and Loprazolam: major interaction.

Last updated Sources: US FDA label

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

Two benzodiazepines used together cause additive sedation, impaired psychomotor performance and respiratory depression. There is rarely any justification for combining them.

What this interaction means in plain words

Chlordiazepoxide and Loprazolam can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Evidence level: Moderate

Why it happens

Additive GABA-A receptor mediated CNS depression.

What to do

Avoid concurrent use and keep to a single benzodiazepine at the lowest effective dose. If overlap is unavoidable, monitor for oversedation and respiratory depression.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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References

Frequently asked questions

Can I take Chlordiazepoxide with Loprazolam?

MediHelp rates the interaction as major. Chlordiazepoxide and Loprazolam can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Two benzodiazepines used together cause additive sedation, impaired psychomotor performance and respiratory depression. There is rarely any justification for combining them.

How serious is the interaction between Chlordiazepoxide and Loprazolam?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use and keep to a single benzodiazepine at the lowest effective dose. If overlap is unavoidable, monitor for oversedation and respiratory depression.

What other medicines interact with Chlordiazepoxide?

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

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