Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Calamus (Acorus calamus), also known as sweet flag, has a history of use in traditional herbal medicine systems, including Ayurveda and Native American medicine. It has been employed for various ailments, including digestive complaints, anxiety, and as an aid in overcoming addictions such as tobacco and alcohol dependence. The rationale in traditional practice often involves calamus’s purported ability to soothe the nervous system, reduce withdrawal symptoms, and act as a mild stimulant or tonic.

However, there is scant high-quality scientific evidence to substantiate these traditional claims. Most modern research on calamus focuses on its essential oils, toxicity (notably β-asarone content, which has shown carcinogenicity in animal studies), and effects on the central nervous system. A few animal studies suggest possible anxiolytic or neuroactive properties, but these are preliminary and do not directly demonstrate efficacy in addiction treatment.

Overall, while the use of calamus for supporting addiction withdrawal has roots in traditional medicine, scientific validation is lacking, and concerns about safety limit its use. Its evidence rating for this indication is therefore low.

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