Drug interactions
Pentobarbital + Pregabalin
Severity: Major
Pentobarbital and Pregabalin: major 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 is a barbiturate with strong sedative and respiratory depressant effects, and pregabalin adds to this CNS depression. The combination can cause marked sedation, impaired breathing and loss of consciousness.
What this interaction means in plain words
Pentobarbital and Pregabalin 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.
Why it happens
Additive pharmacodynamic CNS depression: barbiturate GABA-A potentiation plus pregabalin's alpha-2-delta modulation.
What to do
Use the lowest effective doses and monitor level of consciousness, respiratory rate and oxygen saturation. Reduce the dose of one or both agents if oversedation occurs.
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?
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Other interactions of Pregabalin
Frequently asked questions
Can I take Pentobarbital with Pregabalin?
MediHelp rates the interaction as major. Pentobarbital and Pregabalin 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. Pentobarbital is a barbiturate with strong sedative and respiratory depressant effects, and pregabalin adds to this CNS depression. The combination can cause marked sedation, impaired breathing and loss of consciousness.
How serious is the interaction between Pentobarbital and Pregabalin?
MediHelp rates it major, 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 level of consciousness, respiratory rate and oxygen saturation. Reduce the dose of one or both agents if oversedation occurs.
What other medicines interact with Pregabalin?
MediHelp also lists interactions of Pregabalin with, for example, Alprazolam, Amobarbital, Belladonna and opium. The full list is on the Pregabalin page.
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