Indirubin is a potent cyclin-dependent kinases and GSK-3β inhibitor with IC50 of about 5 uM and 0.6 uM.

Kushenol A is a kind of Adenosine 3', 5'-cyclic monophosphate(cAMP)phosphodiesterase inhibitiors, it shows selective alpha-glucosidase inhibitory activity.

(3R,5R)-1-(4-Hydroxyphenyl)-7-phenyl-3,5-heptanediol is an antiemetic found in Alpinia officinarum that significantly inhibits copper sulfate-induced emesis in young chicks (with an inhibition rate of 50.9% at a dose of 20 mg/kg and 37.7% at a dose of 50 mg/kg).