Drug interactions
Lidocaine + Suvorexant
Severity: Minor
Lidocaine and Suvorexant: minor 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
Suvorexant is metabolized mainly by CYP3A4, and moderate inhibitors raise its exposure and may cause next-day somnolence. Lidocaine is only a weak inhibitor, so the effect is likely small, particularly with local use.
What this interaction means in plain words
Lidocaine and Suvorexant have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Lidocaine belongs to Cardiovascular; Suvorexant belongs to Central Nervous System.
Why it happens
Lidocaine may weakly inhibit CYP3A4 and slightly reduce suvorexant clearance.
What to do
No dose change is usually needed. With prolonged systemic lidocaine, ask about next-day drowsiness and keep suvorexant at the lowest effective dose.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Lidocaine
- Bupivacaine liposome + Lidocaine Major
- Disopyramide + Lidocaine Major
- Ex vivo expanded autologous human corneal epithelial cells containing stem cells + Lidocaine Major
- Lidocaine + Nirmatrelvir / ritonavir Major
- Lidocaine + Ombitasvir / paritaprevir / ritonavir and dasabuvir Major
- Lidocaine + Pimozide Major
Other interactions of Suvorexant
Frequently asked questions
Can I take Lidocaine with Suvorexant?
MediHelp rates the interaction as minor. Lidocaine and Suvorexant have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Suvorexant is metabolized mainly by CYP3A4, and moderate inhibitors raise its exposure and may cause next-day somnolence. Lidocaine is only a weak inhibitor, so the effect is likely small, particularly with local use.
How serious is the interaction between Lidocaine and Suvorexant?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is usually needed. With prolonged systemic lidocaine, ask about next-day drowsiness and keep suvorexant at the lowest effective dose.
What other medicines interact with Lidocaine?
MediHelp also lists interactions of Lidocaine with, for example, Bupivacaine liposome, Disopyramide, Ex vivo expanded autologous human corneal epithelial cells containing stem cells. The full list is on the Lidocaine page.
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