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Kava
Kava — was die europäische Monographie tatsächlich stützt, wofür es nicht ist, Form und vorgesehene Dauer, Nebenwirkungen und die 3 Arzneimittelwechselwirkungs, die dafür dokumentiert sind.
Das ist eine Referenzseite, keine Diagnose und kein Rezept. Pflanzliche Produkte sind echte Pharmakologie: sie haben Wirkungen, Nebenwirkungen und Wechselwirkungen mit Arzneimitteln. Sagen Sie Arzt und Apotheker alles, was Sie einnehmen, einschließlich Tees und Nahrungsergänzung, und setzen Sie nie ein verordnetes Mittel wegen etwas ab, das Sie hier lesen.
Was es ist
Piper methysticum G.Forst. — root and rhizome
Hier gruppiert unter Where the harm is. Regulatorische Lage:Withdrawn, suspended or restricted as a medicine in much of Europe after reports of severe liver injury.
Was die Evidenz stützt
Die registrierte Indikation:It was marketed for anxiety. It is included here as a boundary, not a recommendation.
Kava beverages have a long cultural history in the Pacific islands. The European story is different: standardised kava extracts marketed for anxiety in the 1990s were withdrawn or suspended in several countries after reports of severe hepatotoxicity, including liver failure requiring transplantation. Regulatory positions have shifted back and forth in the decades since and availability differs by country, which is exactly why an internet order is a poor way to settle the question. The awkward part of the case is that the trials suggested a genuine anxiety-reducing effect — an effective product with a rare, catastrophic harm is a much harder judgement than an ineffective one, and that is the honest shape of the kava file rather than a simple story of quackery. Preparation matters too: traditional water-based preparations of the peeled rootstock differ from the acetone and ethanol extracts that reached European shelves.
D — Popular claim unsupported, or safety dominates The better trials are negative, or the substance appears in the literature mainly for the harm it has caused.
Wofür es nicht ist
Anxiety disorders, which have treatments with far better-characterised risk. Do not import it to self-treat.
Form, Stärke und wie lange
Traditional water-based root beverages; ethanol and acetone extracts in capsules, which are the preparations associated with the liver reports.
Dauer.Not applicable — no European regulator is recommending a course.
Auf dieser Seite erscheint absichtlich keine Grammzahl. Pflanzenteil, Extraktionsmittel und Droge-zu-Extrakt-Verhältnis definieren zusammen eine Zubereitung, und eine Zahl aus einer beschreibt eine andere nicht. Die Begründung steht auf dem Hub; die Menge, die für Sie gilt, steht auf der Packung in der Hand, und ein Apotheker liest sie mit Ihnen.
Nebenwirkungen
Liver injury, which is rare but has been severe and occasionally fatal. Regular heavy use causes a dry, scaly skin condition known as kava dermopathy. Drowsiness and impaired driving, markedly worsened by alcohol.
Wer es meiden sollte
Avoid entirely with any liver disease, in pregnancy and while breastfeeding, and before driving.
Wechselwirkungen mit Arzneimitteln
| Arzneimittel oder Substanz | Was beschrieben wird |
|---|---|
| Alcohol | The combination increases both sedation and the liver risk, and impaired driving with kava plus alcohol is documented. |
| Sleeping tablets, benzodiazepines and sedating antihistamines | Additive sedation with benzodiazepines, sleeping tablets and sedating antihistamines. |
| Anything else that stresses the liver | Anything else with a liver signal — including alcohol and several medicines — should not be stacked with it. |
Die umgekehrte Sicht — vom Arzneimittel statt von der Pflanze — steht in der Referenz zu Arzneimittel-, Nahrungs- und Alkoholwechselwirkungen, und für jedes Kraut auf dieser Seite zusammengefasst.
Quellen:NIH National Center for Complementary and Integrative Health — herb fact sheets · LiverTox: Clinical and Research Information on Drug-Induced Liver Injury (NIDDK, National Institutes of Health)· geprüft2026-09-06
Häufige Fragen
Wofür wird kava verwendet?
It was marketed for anxiety. It is included here as a boundary, not a recommendation. Kava beverages have a long cultural history in the Pacific islands. The European story is different: standardised kava extracts marketed for anxiety in the 1990s were withdrawn or suspended in several countries after reports of severe hepatotoxicity, including liver failure requiring transplantation. Regulatory positions have shifted back and forth in the decades since and availability differs by country, which is exactly why an internet order is a poor way to settle the question. The awkward part of the case is that the trials suggested a genuine anxiety-reducing effect — an effective product with a rare, catastrophic harm is a much harder judgement than an ineffective one, and that is the honest shape of the kava file rather than a simple story of quackery. Preparation matters too: traditional water-based preparations of the peeled rootstock differ from the acetone and ethanol extracts that reached European shelves.
Wirkt kava?
Hier bewertet D: The better trials are negative, or the substance appears in the literature mainly for the harm it has caused. Anxiety disorders, which have treatments with far better-characterised risk. Do not import it to self-treat.
Wie viel kava soll ich nehmen?
Diese Referenz druckt keine Grammzahlen, weil sie nicht zwischen Zubereitungen unterschiedlicher Extraktstärke übertragbar sind. Ehrlich sagbar sind Form und Dauer:Traditional water-based root beverages; ethanol and acetone extracts in capsules, which are the preparations associated with the liver reports. Not applicable — no European regulator is recommending a course.
Welche Nebenwirkungen hat kava?
Liver injury, which is rare but has been severe and occasionally fatal. Regular heavy use causes a dry, scaly skin condition known as kava dermopathy. Drowsiness and impaired driving, markedly worsened by alcohol.
Wechselwirkt kava mit Arzneimitteln?
Ja — dokumentiert fürAlcohol, Sedatives, Liver load. Jede ist auf dieser Seite beschrieben, mit einem Link zur Arzneimittel-Referenz, wo eine existiert.
Andere inwhere the harm is
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