Nitazoxanide (NSC-697855) is a synthetic benzamide with antiprotozoal activity. Nitazoxanide exerts its antiprotozoal activity by interfering with the pyruvate ferredoxin/flavodoxin oxidoreductase dependent electron transfer reaction.

Metronidazole (Metronidazol) is a synthetic nitroimidazole derivative with antiprotozoal and antibacterial activities.

Linearolactone, isolated from Salvia polystachya, inhibits Entamoeba histolytica and Giardia lamblia.

3,5-O-Dicaffeoylquinic acid (Isochlorogenic Acid A) is an isolated compound from Artemisia argyi; its ester derivatives exert anti-leucyl-tRNA synthetase of Giardia lamblia (GlLeuRS) and potential anti-giardial effects. 3,5-O-Dicaffeoylquinic acid (Isochlorogenic Acid A) as a neuraminidase inhibitory ligand in Flos Lonicerae, it has neuroprotective effects on SH-SY5Y cells and senescence-accelerated-prone mice 8 through the up-regulation of phosphoglycerate kinase-1. 3,5-O-Dicaffeoylquinic acid (Isochlorogenic Acid A) also has antioxidant and anti-complementary activities.