Acorus calamus
Used in Ayurveda (Vacha) for cognitive support and voice clarity. CRITICAL: North American variety has high beta-asarone (carcinogenic). Use Asian diploid variety only.
Pregnancy. ONLY use diploid Asian variety. North American tetraploid has toxic beta-asarone.
May interact with sedatives and MAOIs.
Nausea. Beta-asarone: carcinogenic in high-asarone varieties.
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