Downward-Draining Herbs (Intro)

Based on your knowledge of its properties, what is the recommended dosage range for Gan Sui (kansui radix)?

Gan Sui is toxic. Use the smaller dosage.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 251 [Q555]