Drug interactions
Pentobarbital + Zaleplon
Severity: Moderate
Pentobarbital and Zaleplon: 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
Pentobarbital induces CYP3A4 and may reduce zaleplon exposure. More importantly, barbiturates and zaleplon both depress the CNS, so combined use can cause excessive sedation and respiratory depression.
What this interaction means in plain words
Pentobarbital and Zaleplon 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.
Why it happens
Additive CNS depression plus barbiturate-mediated CYP3A4 induction that increases zaleplon clearance.
What to do
Avoid concurrent use where possible; if both are needed, monitor sedation and respiratory status and use the lowest zaleplon dose.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Pentobarbital and Zaleplon, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Zaleplon
- Calcium / magnesium / potassium / sodium oxybates + Zaleplon Contraindicated
- Sodium oxybate + Zaleplon Contraindicated
- Brexanolone + Zaleplon Major
- Buprenorphine long-acting + Zaleplon Major
- Buprenorphine subdermal implant + Zaleplon Major
- Buprenorphine transdermal + Zaleplon Major
Frequently asked questions
Can I take Pentobarbital with Zaleplon?
MediHelp rates the interaction as moderate. Pentobarbital and Zaleplon 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. Pentobarbital induces CYP3A4 and may reduce zaleplon exposure. More importantly, barbiturates and zaleplon both depress the CNS, so combined use can cause excessive sedation and respiratory depression.
How serious is the interaction between Pentobarbital and Zaleplon?
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 concurrent use where possible; if both are needed, monitor sedation and respiratory status and use the lowest zaleplon dose.
What other medicines interact with Zaleplon?
MediHelp also lists interactions of Zaleplon with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Brexanolone. The full list is on the Zaleplon page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
