Drug interactions
Cyclizine + Quazepam
Severity: Moderate
Cyclizine and Quazepam: 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
Quazepam is a long-acting benzodiazepine hypnotic and cyclizine is a sedating antihistamine. Together they increase the risk of marked drowsiness, impaired psychomotor function and respiratory depression.
What this interaction means in plain words
Cyclizine and Quazepam 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 through GABA-A potentiation and histamine H1 blockade.
What to do
Use the lowest effective doses and monitor sedation, especially in the elderly. Advise against alcohol and driving.
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 Cyclizine
- Calcium / magnesium / potassium / sodium oxybates + Cyclizine Major
- Cyclizine + Henbane Major
- Cyclizine + Sodium oxybate Major
- Abobotulinumtoxina + Cyclizine Moderate
- Alfentanil + Cyclizine Moderate
- Alprazolam + Cyclizine Moderate
Frequently asked questions
Can I take Cyclizine with Quazepam?
MediHelp rates the interaction as moderate. Cyclizine and Quazepam 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. Quazepam is a long-acting benzodiazepine hypnotic and cyclizine is a sedating antihistamine. Together they increase the risk of marked drowsiness, impaired psychomotor function and respiratory depression.
How serious is the interaction between Cyclizine and Quazepam?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor sedation, especially in the elderly. Advise against alcohol and driving.
What other medicines interact with Cyclizine?
MediHelp also lists interactions of Cyclizine with, for example, Calcium / magnesium / potassium / sodium oxybates, Henbane, Sodium oxybate. The full list is on the Cyclizine page.
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