Drug interactions
Droperidol + Lorazepam
Severity: Moderate
Droperidol and Lorazepam: 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
Droperidol is a sedating neuroleptic and adds to the CNS and respiratory depression of lorazepam. Droperidol also carries a QT prolongation risk, so the overall clinical context matters when used with sedatives.
What this interaction means in plain words
Droperidol and Lorazepam 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 via dopamine and alpha-adrenergic blockade by droperidol and GABA-A potentiation by lorazepam.
What to do
Titrate doses carefully and monitor sedation, respiration and blood pressure; obtain an ECG if there are QT risk factors.
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 Lorazepam
Frequently asked questions
Can I take Droperidol with Lorazepam?
MediHelp rates the interaction as moderate. Droperidol and Lorazepam 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. Droperidol is a sedating neuroleptic and adds to the CNS and respiratory depression of lorazepam. Droperidol also carries a QT prolongation risk, so the overall clinical context matters when used with sedatives.
How serious is the interaction between Droperidol and Lorazepam?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate doses carefully and monitor sedation, respiration and blood pressure; obtain an ECG if there are QT risk factors.
What other medicines interact with Lorazepam?
MediHelp also lists interactions of Lorazepam with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Lorazepam page.
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