Drug interactions
Brivaracetam + Efavirenz
Severity: Minor
Brivaracetam and Efavirenz: 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
Both drugs can cause dizziness and somnolence, so combined use may add to impaired alertness and coordination.
What this interaction means in plain words
Brivaracetam and Efavirenz have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Brivaracetam belongs to Central Nervous System; Efavirenz belongs to Anti Virals.
Why it happens
Additive central nervous system depressant effects.
What to do
Counsel on drowsiness and driving, and take efavirenz at bedtime.
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 Efavirenz
- Cobimetinib + Efavirenz Contraindicated
- Dienogest / estradiol valerate + Efavirenz Contraindicated
- Dihydroergotamine intranasal + Efavirenz Contraindicated
- Dihydroergotamine + Efavirenz Contraindicated
- Doravirine + Efavirenz Contraindicated
- Efavirenz + Elbasvir / grazoprevir Contraindicated
Other interactions of Brivaracetam
Frequently asked questions
Can I take Brivaracetam with Efavirenz?
MediHelp rates the interaction as minor. Brivaracetam and Efavirenz have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both drugs can cause dizziness and somnolence, so combined use may add to impaired alertness and coordination.
How serious is the interaction between Brivaracetam and Efavirenz?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel on drowsiness and driving, and take efavirenz at bedtime.
What other medicines interact with Efavirenz?
MediHelp also lists interactions of Efavirenz with, for example, Cobimetinib, Dienogest / estradiol valerate, Dihydroergotamine intranasal. The full list is on the Efavirenz page.
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