Evidence supporting the use of: Tagara
For the body system: Parasympathetic Nervous System

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Synopsis

Source of validity: Traditional
Rating (out of 5): 3

Tagara (Valeriana wallichii), also known as Indian Valerian, is a herb traditionally used in Ayurveda to support relaxation, sleep, and calm the nervous system. Its use to support the parasympathetic nervous system largely stems from traditional Ayurvedic texts, which describe Tagara as having sedative and anxiolytic effects. By promoting relaxation and reducing stress, Tagara is believed to facilitate the "rest and digest" functions governed by the parasympathetic nervous system.

Historically, Tagara has been used for centuries in South Asian medicine to manage insomnia, anxiety, and nervous unrest. Preparations of the root are found in classical Ayurvedic formulations intended to balance Vata dosha, which is associated with nervous system activity. The calming effects are thought to indirectly support parasympathetic function.

While there is some scientific research on related species such as Valeriana officinalis (European Valerian), which show mild sedative and anxiolytic properties, direct scientific evidence for Tagara (Valeriana wallichii) and its specific impact on the parasympathetic nervous system is limited. Most available evidence is based on tradition and extrapolation from other species. Thus, the justification is predominantly traditional, with a moderate rating due to extensive historical use but a lack of robust clinical trials.

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