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Drug interactions

Butabarbital + Chloral hydrate

Severity: Moderate

Butabarbital and Chloral hydrate: 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 agents are sedative-hypnotics, so together they produce additive CNS depression with excess sedation and possible respiratory depression. Chloral hydrate metabolites may also modestly alter the pharmacokinetics of other drugs, adding to unpredictability.

What this interaction means in plain words

Butabarbital and Chloral hydrate 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, with both drugs enhancing inhibitory neurotransmission.

What to do

Avoid duplicate hypnotic therapy where possible, or reduce doses and monitor sedation and respiratory status. Advise against alcohol and driving.

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 Butabarbital with Chloral hydrate?

MediHelp rates the interaction as moderate. Butabarbital and Chloral hydrate 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 agents are sedative-hypnotics, so together they produce additive CNS depression with excess sedation and possible respiratory depression. Chloral hydrate metabolites may also modestly alter the pharmacokinetics of other drugs, adding to unpredictability.

How serious is the interaction between Butabarbital and Chloral hydrate?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid duplicate hypnotic therapy where possible, or reduce doses and monitor sedation and respiratory status. Advise against alcohol and driving.

What other medicines interact with Chloral hydrate?

MediHelp also lists interactions of Chloral hydrate with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Chloral hydrate page.

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