Zi Cao ( External Use Only)

Lithospermum erythrorhizon Sieb.et Zucc.
Part Used:Root EXTERNAL USE ONLY As a result of new analytical techniques we and other members of the British Herbal Medicine Association have recently learnt that this plant is likely to deliver toxic pyrrolizidine alkaloids (PAs) at levels far higher than the maximum recommended by health regulators. PAs have short term toxic effects in very high doses, but our main concern is the risk many years later of damage to the liver and other organs, and so we have taken the responsible decision in the interests of public safety to not supply this plant for internal use. Phoenix, Professional herbs for Herbal Professions.

紫草（仅限外用）

入药部位：根（仅限外用）。

根据新的分析技术结果，我们和英国草药协会其他成员了解到，这种植物可能会释放有毒的吡咯里西啶生物碱，其含量远远高于健康监管机构推荐的最高水平。吡咯里西啶生物碱在非常高的及详细啊具有短期毒性作用，但是我们主要担心的是多年后肝脏和其他器官受损的风险，因此我们为了公众安全的利益考虑而采取了负责任的决定，该植物不能内服。

凤凰医药，专业的草药。