Drug interactions
Gabapentin + Pentobarbital
Severity: Moderate
Gabapentin and Pentobarbital: 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 drugs depress the central nervous system, so combining them increases sedation, impaired psychomotor function and the risk of respiratory depression. The effect is most important at higher barbiturate doses or in frail patients.
What this interaction means in plain words
Gabapentin and Pentobarbital 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 pharmacodynamic CNS depression via GABAergic barbiturate action and gabapentin's CNS effects.
What to do
Use the lowest effective doses and monitor for excessive sedation and respiratory depression. Reduce the dose of one or both agents if oversedation occurs.
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?
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Other interactions of Gabapentin
Frequently asked questions
Can I take Gabapentin with Pentobarbital?
MediHelp rates the interaction as moderate. Gabapentin and Pentobarbital 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 drugs depress the central nervous system, so combining them increases sedation, impaired psychomotor function and the risk of respiratory depression. The effect is most important at higher barbiturate doses or in frail patients.
How serious is the interaction between Gabapentin and Pentobarbital?
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 excessive sedation and respiratory depression. Reduce the dose of one or both agents if oversedation occurs.
What other medicines interact with Gabapentin?
MediHelp also lists interactions of Gabapentin with, for example, Alprazolam, Amobarbital, Belladonna and opium. The full list is on the Gabapentin page.
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