TABLE 1.

Typical alkaloidal content in kratom products and dried leaves

Alkaloid	Range of Alkaloid Contenta (mg/g of Product)
mitragynine	0.5–270
speciogynine	3.18–33.4
mitraciliatine	0.647–4.75
speciociliatine	0.185–41.7
paynantheine	1.46–70.4
isopaynantheine	0.269–3.80
7-hydroxymitragynine	0.124–1.10
speciofoline	0.122–5.90
corynoxeine	0.290–1.22
corynoxine A	0.205–11.4
ajmalicine	0.192–0.648
rhynchophylline	0.239

^aBased on two powdered plant products, a loose-leaf product, a liquid product, and an encapsulated powder (Manwill et al., 2022).