Skip to content

Drug interactions

Alprazolam + Orphenadrine

Severity: Moderate

Alprazolam and Orphenadrine: 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

Orphenadrine has sedating and anticholinergic properties that add to the central nervous system depression produced by alprazolam. Drowsiness, dizziness, confusion and impaired psychomotor performance may be more pronounced, especially in older adults.

What this interaction means in plain words

Alprazolam and Orphenadrine 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.

Evidence level: Moderate

Why it happens

Additive CNS depressant effects through pharmacodynamic synergy.

What to do

Use the lowest effective doses and warn patients to avoid driving or hazardous tasks until response is known. Monitor older patients closely for oversedation, confusion and falls.

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 see why Alprazolam and Orphenadrine interact, what to do about it, and the sources.

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

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Alprazolam with Orphenadrine?

MediHelp rates the interaction as moderate. Alprazolam and Orphenadrine 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. Orphenadrine has sedating and anticholinergic properties that add to the central nervous system depression produced by alprazolam. Drowsiness, dizziness, confusion and impaired psychomotor performance may be more pronounced, especially in older adults.

How serious is the interaction between Alprazolam and Orphenadrine?

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 warn patients to avoid driving or hazardous tasks until response is known. Monitor older patients closely for oversedation, confusion and falls.

What other medicines interact with Alprazolam?

MediHelp also lists interactions of Alprazolam with, for example, Calcium / magnesium / potassium / sodium oxybates, Itraconazole, Ketoconazole. The full list is on the Alprazolam 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