Indications
Primary Indications
Relief of mild to moderate anxietyImprovement of sleep onset and qualityTraditional ceremonial and relaxation use
Kava is a traditional South Pacific plant supplement used for its calming, anti-anxiety and sleep-promoting effects.
Its active compounds, kavalactones, act on brain chemical signaling to reduce anxiety and promote relaxation.
Reviewed by the HeyPsych Medical Review Board · Reviewed November 24, 2025
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Used for
Also prescribed for (off-label)
Common use
Kava is used for Generalized anxiety disorder. The full guide below has the details.
About Generalized anxiety disorderHow many people in 100 notice each one in clinical studies. Many early side effects fade within a few weeks.
Choose what applies to you.
Not recommended (insufficient safety data, potential risk)
General information, not advice for your case. Talk it through with your prescriber or pharmacist.
Hepatotoxicity (rare but serious)
Severe allergic reactions
Thoughts of suicide? Call or text 988, any time.
Everything we know about Kava (Piper methysticum), section by section.
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With: Alcohol
Risk: Additive hepatotoxicity and sedation
Action: Avoid concurrent use
With: Sedatives (benzodiazepines, barbiturates, hypnotics)
Risk: Increased CNS depression
Action: Avoid or monitor closely
With: Hepatotoxic drugs (e.g., acetaminophen, isoniazid)
Risk: Increased liver injury
Action: Avoid combination
This treatment information is for educational purposes only. Treatment decisions should be made in consultation with qualified healthcare professionals based on individual circumstances, symptoms, and medical history. Do not attempt treatment without professional guidance.
Thinking about Kava (Piper methysticum)? A prescriber can tell you if it fits.
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