Drug interactions
Dantrolene + Lofexidine
Severity: Moderate
Dantrolene and Lofexidine: 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
Lofexidine is an alpha-2 agonist that causes sedation and lowers blood pressure, and dantrolene also causes drowsiness. Combined use may increase sedation and dizziness, with a risk of hypotension.
What this interaction means in plain words
Dantrolene and Lofexidine 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; Lofexidine belongs to Central Nervous System.
Why it happens
Additive central nervous system depression, with lofexidine adding alpha-2-mediated sympatholytic effects.
What to do
Monitor blood pressure, heart rate and sedation level, and advise caution on standing. Reduce doses if symptomatic hypotension or oversedation occurs.
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 Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Frequently asked questions
Can I take Dantrolene with Lofexidine?
MediHelp rates the interaction as moderate. Dantrolene and Lofexidine 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. Lofexidine is an alpha-2 agonist that causes sedation and lowers blood pressure, and dantrolene also causes drowsiness. Combined use may increase sedation and dizziness, with a risk of hypotension.
How serious is the interaction between Dantrolene and Lofexidine?
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 blood pressure, heart rate and sedation level, and advise caution on standing. Reduce doses if symptomatic hypotension or oversedation occurs.
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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