Ginsenoside Rg3(S-Form) is the main component of Panax ginseng C. A. Meyer. It inhibits Na+ and hKv1.4channel, and also inhibits Aβ levels, NF-κB activity, and COX-2 expression.

Ginsenoside Rg3(R-Form), one of the active compounds present in ginseng root, inhibits angiogenesis.

Ginsenoside Rh2 induces the activation of caspase-8 and caspase-9. Ginsenoside Rh2 induces cancer cell apoptosis in a multi-path manner.

20(R)-Ginsenoside Rh2 is a protopanaxadiol-type saponin with multiple biological activities.

Harpagoside can be obtained by Harpagophytum procumbens. Harpagoside has an inhibitory effect on COX-1 and COX-2 active, and suppresses NO production.

Harringtonine is a natural Cephalotaxus alkaloid that inhibits protein synthesis.

Homoharringtonine is a cytotoxic alkaloid.

Hydroxysafflor yellow A is a natural product of flavonoids isolated from safflower.

Hyperoside is a NF-κB inhibitor, found from Hypericum monogynum.

Hypaconitine acts as the neuromuscular blocker.

Icariin is a flavonol glycoside. Icariin inhibits PDE5 and PDE4 activities and it is also a PPARα activator.

Imperatorin is an effective of NO synthesis inhibitor, which also is a BChE inhibitor and a weak agonist of TRPV1.

Indirubin is a bis-indole alkaloid.

Isoferulic acid is a cinnamic acid derivative.

Isofraxidin, a coumarin component from Acanthopanax senticosus, inhibits MMP-7 expression.

Isoliquiritin, isolated from Licorice Root, inhibits angiogenesis and tube formation.