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Severe· moderate-evidence
Avoid this combination unless your prescriber explicitly approves it with appropriate monitoring.
Kava combined with acetaminophen may increase risk of liver damage, as both are hepatotoxic.
Both kava and acetaminophen are metabolized by the liver and can cause hepatotoxicity. Combined use may overwhelm liver detoxification pathways.
Source: Natural Medicines Database · Reviewed April 2026
Kava + Acetaminophen (Tylenol): high risk. Avoid this combination unless your prescriber explicitly approves it with appropriate monitoring. Kava combined with acetaminophen may increase risk of liver damage, as both are hepatotoxic.
Both kava and acetaminophen are metabolized by the liver and can cause hepatotoxicity. Combined use may overwhelm liver detoxification pathways.
Do not stop either abruptly on your own. Talk to your prescriber or pharmacist promptly — bring this page to your appointment.
Educational information only — not medical advice. Always verify with a healthcare professional.