Skip to content

Drug interactions

Cinnarizine + Cyclizine

Severity: Moderate

Cinnarizine and Cyclizine: 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

Both are sedating antihistamines used for nausea and vertigo. Together they increase drowsiness and anticholinergic effects, and cinnarizine may cause extrapyramidal symptoms in susceptible patients.

What this interaction means in plain words

Cinnarizine and Cyclizine 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.

Cinnarizine belongs to Respiratory; Cyclizine belongs to Respiratory.

Evidence level: Moderate

Why it happens

Additive H1-receptor and muscarinic blockade with CNS depression.

What to do

Avoid duplicate antihistamine antiemetic therapy and choose one agent. Monitor older patients for oversedation, falls and movement disorders.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Cinnarizine and Cyclizine, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Cinnarizine with Cyclizine?

MediHelp rates the interaction as moderate. Cinnarizine and Cyclizine 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. Both are sedating antihistamines used for nausea and vertigo. Together they increase drowsiness and anticholinergic effects, and cinnarizine may cause extrapyramidal symptoms in susceptible patients.

How serious is the interaction between Cinnarizine and Cyclizine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid duplicate antihistamine antiemetic therapy and choose one agent. Monitor older patients for oversedation, falls and movement disorders.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in