Drug interactions
Diazepam + Moxonidine
Severity: Moderate
Diazepam and Moxonidine: 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
Moxonidine can cause drowsiness and dizziness, and diazepam may add to these effects. Hypotension and impaired psychomotor performance may also be more pronounced.
What this interaction means in plain words
Diazepam and Moxonidine 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 and central sympatholytic effects of moxonidine with benzodiazepine sedation.
What to do
Monitor for sedation and orthostatic hypotension, particularly when starting or increasing either drug. Counsel patients regarding driving and operating machinery.
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 Diazepam
Frequently asked questions
Can I take Diazepam with Moxonidine?
MediHelp rates the interaction as moderate. Diazepam and Moxonidine 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. Moxonidine can cause drowsiness and dizziness, and diazepam may add to these effects. Hypotension and impaired psychomotor performance may also be more pronounced.
How serious is the interaction between Diazepam and Moxonidine?
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 for sedation and orthostatic hypotension, particularly when starting or increasing either drug. Counsel patients regarding driving and operating machinery.
What other medicines interact with Diazepam?
MediHelp also lists interactions of Diazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Alfentanil, Alprazolam. The full list is on the Diazepam page.
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