Dried, powdered root and rhizomes, 2 to 3 grams per day, are commonly used.¹³ Alternatively, 300 to 400 mg per day of concentrated solid extract standardized on eleutherosides B and E can be used, as can alcohol-based extracts, 8 to 10 ml in two to three divided dosages. Kan Jang is a formula combining an andrographis extract with an eleuthero extract providing 2 to 2.4 mg eleutherosides daily. Historically, eleuthero is taken continuously for six to eight weeks, followed by a one- to two-week break before resuming.