Drug interactions
Dantrolene + Diazepam
Severity: Moderate
Dantrolene 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
Dantrolene commonly causes drowsiness, dizziness and weakness, and these effects can add to diazepam's sedation. Oral combination may impair alertness and coordination.
What this interaction means in plain words
Dantrolene 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.
Dantrolene belongs to Musculoskeletal; Diazepam belongs to Musculoskeletal.
Why it happens
Additive CNS depression and muscle weakness from GABA-A potentiation and peripheral inhibition of calcium release by dantrolene.
What to do
Monitor for oversedation and weakness, and introduce each drug gradually. Warn patients about driving and machinery.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dantrolene and Diazepam, 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 14 days on the web. No card needed.
Other interactions of Diazepam
Other interactions of Dantrolene
Frequently asked questions
Can I take Dantrolene with Diazepam?
MediHelp rates the interaction as moderate. Dantrolene 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. Dantrolene commonly causes drowsiness, dizziness and weakness, and these effects can add to diazepam's sedation. Oral combination may impair alertness and coordination.
How serious is the interaction between Dantrolene 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 for oversedation and weakness, and introduce each drug gradually. Warn patients about driving and machinery.
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.
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.
