Drug interactions
Brimonidine + Pentobarbital
Severity: Moderate
Brimonidine 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
Pentobarbital is a barbiturate with strong sedative and respiratory depressant effects. Brimonidine may add to sedation when systemically absorbed.
What this interaction means in plain words
Brimonidine 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 CNS depression from GABA-A potentiation and central alpha-2 agonism.
What to do
Monitor level of sedation and respiratory status, and adjust the barbiturate dose accordingly.
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 Brimonidine
- Brimonidine + Isocarboxazid Contraindicated
- Brimonidine + Linezolid Contraindicated
- Brimonidine + Phenelzine Contraindicated
- Brimonidine + Procarbazine Contraindicated
- Brimonidine + Rasagiline Contraindicated
- Brimonidine + Selegiline Contraindicated
Frequently asked questions
Can I take Brimonidine with Pentobarbital?
MediHelp rates the interaction as moderate. Brimonidine 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. Pentobarbital is a barbiturate with strong sedative and respiratory depressant effects. Brimonidine may add to sedation when systemically absorbed.
How serious is the interaction between Brimonidine 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: Monitor level of sedation and respiratory status, and adjust the barbiturate dose accordingly.
What other medicines interact with Brimonidine?
MediHelp also lists interactions of Brimonidine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Brimonidine page.
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