This article needs additional citations for verification. (December 2009) |
Antiprotozoal agents (ATC code: ATC P01) is a class of pharmaceuticals used in treatment of protozoan infection.
A paraphyletic group, protozoans have little in common with each other. For example, Entamoeba histolytica, a unikont eukaryotic organism, is more closely related to Homo sapiens (humans), which also belongs to the unikont phylogenetic group, than it is to Naegleria fowleri, a "protozoan" bikont. As a result, agents effective against one pathogen may not be effective against another.[citation needed]
Antiprotozoal agents can be grouped by mechanism[1] or by organism.[2] Recent papers have also proposed the use of viruses to treat infections caused by protozoa.[3][4]
Overuse or misuse of antiprotozoals can lead to the development of antiprotozoal resistance.[5]