Drug interactions
Asenapine transdermal + Diazepam
Severity: Moderate
Asenapine transdermal and Diazepam: 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
Asenapine is sedating, and with diazepam it may increase drowsiness, orthostatic hypotension and psychomotor impairment. Cases of severe reactions have been reported when benzodiazepines are combined with antipsychotics, especially parenterally.
What this interaction means in plain words
Asenapine transdermal and Diazepam 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 antipsychotic receptor blockade.
What to do
Monitor sedation, blood pressure and falls risk, particularly at initiation or after dose changes. Reduce the dose of either drug if excessive drowsiness 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 Diazepam
Frequently asked questions
Can I take Asenapine transdermal with Diazepam?
MediHelp rates the interaction as moderate. Asenapine transdermal and Diazepam 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. Asenapine is sedating, and with diazepam it may increase drowsiness, orthostatic hypotension and psychomotor impairment. Cases of severe reactions have been reported when benzodiazepines are combined with antipsychotics, especially parenterally.
How serious is the interaction between Asenapine transdermal and Diazepam?
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 sedation, blood pressure and falls risk, particularly at initiation or after dose changes. Reduce the dose of either drug if excessive drowsiness occurs.
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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