Drug interactions
Azelastine + Pentobarbital
Severity: Moderate
Azelastine 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 potent CNS depressant and azelastine can add to sedation and impaired alertness. Excess depression of consciousness and breathing is possible, especially at higher doses.
What this interaction means in plain words
Azelastine 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 the barbiturate and the sedating antihistamine.
What to do
Monitor level of sedation and respiratory function. Avoid alcohol and other sedatives, and consider a non-sedating antihistamine.
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 Azelastine
Frequently asked questions
Can I take Azelastine with Pentobarbital?
MediHelp rates the interaction as moderate. Azelastine 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 potent CNS depressant and azelastine can add to sedation and impaired alertness. Excess depression of consciousness and breathing is possible, especially at higher doses.
How serious is the interaction between Azelastine 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 function. Avoid alcohol and other sedatives, and consider a non-sedating antihistamine.
What other medicines interact with Azelastine?
MediHelp also lists interactions of Azelastine with, for example, Calcium / magnesium / potassium / sodium oxybates, Methadone, Sodium oxybate. The full list is on the Azelastine page.
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