Drug interactions
Belzutifan + Dantrolene
Severity: Moderate
Belzutifan and Dantrolene: 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
Belzutifan can induce CYP3A4 and may lower exposure to drugs cleared by this enzyme, including dantrolene. Reduced dantrolene effect could be relevant when it is used for spasticity or malignant hyperthermia.
What this interaction means in plain words
Belzutifan and Dantrolene 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.
Belzutifan belongs to Miscellaneous; Dantrolene belongs to Musculoskeletal.
Why it happens
Induction of CYP3A4 by belzutifan increases metabolism of dantrolene.
What to do
Monitor clinical response to dantrolene and increase the dose if efficacy is reduced. Consider an alternative if control is inadequate.
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 Dantrolene
Other interactions of Belzutifan
Frequently asked questions
Can I take Belzutifan with Dantrolene?
MediHelp rates the interaction as moderate. Belzutifan and Dantrolene 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. Belzutifan can induce CYP3A4 and may lower exposure to drugs cleared by this enzyme, including dantrolene. Reduced dantrolene effect could be relevant when it is used for spasticity or malignant hyperthermia.
How serious is the interaction between Belzutifan and Dantrolene?
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 clinical response to dantrolene and increase the dose if efficacy is reduced. Consider an alternative if control is inadequate.
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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