Drug interactions
Dantrolene + Valoctocogene roxaparvovec
Severity: Major
Dantrolene and Valoctocogene roxaparvovec: major 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
Valoctocogene roxaparvovec is a liver-directed gene therapy that commonly raises liver enzymes. Dantrolene, particularly with long-term use, can cause serious hepatotoxicity, so combined use may add to liver injury or confound its assessment.
What this interaction means in plain words
Dantrolene and Valoctocogene roxaparvovec can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Dantrolene belongs to Musculoskeletal; Valoctocogene roxaparvovec belongs to Miscellaneous.
Why it happens
Additive hepatotoxicity from a hepatotoxic drug and a liver-targeted gene therapy.
What to do
Monitor liver enzymes closely and consider alternative antispasticity therapy if dantrolene is not essential. Stop dantrolene if transaminases rise significantly.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Dantrolene
Other interactions of Valoctocogene roxaparvovec
Frequently asked questions
Can I take Dantrolene with Valoctocogene roxaparvovec?
MediHelp rates the interaction as major. Dantrolene and Valoctocogene roxaparvovec can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Valoctocogene roxaparvovec is a liver-directed gene therapy that commonly raises liver enzymes. Dantrolene, particularly with long-term use, can cause serious hepatotoxicity, so combined use may add to liver injury or confound its assessment.
How serious is the interaction between Dantrolene and Valoctocogene roxaparvovec?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor liver enzymes closely and consider alternative antispasticity therapy if dantrolene is not essential. Stop dantrolene if transaminases rise significantly.
What other medicines interact with Dantrolene?
MediHelp also lists interactions of Dantrolene with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Dantrolene page.
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