Antiprotozoal


Antiprotozoal agents is a class of pharmaceuticals used in treatment of protozoan infection.
Protozoans have little in common with each other and so agents effective against one pathogen may not be effective against another.
They can be grouped by mechanism or by organism. Recent papers have also proposed the use of viruses to treat infections caused by protozoa.

Medical Uses

Antiprotozoals are used to treat protozoal infections, which include amebiasis, giardiasis, cryptosporidiosis, microsporidiosis, malaria, babesiosis, trypanosomiasis, Chagas disease, leishmaniasis, and toxoplasmosis. Currently, many of the treatments for these infections are limited by their toxicity.

Outdated terminology

Once upon a time protists were considered protozoans, but of late the categorization of unicellar organisms has undergone rapid development, however in literature, including scientific, there tends to persist the usage of the term antiprotozoal when they really mean anti-protist. Protists are a supercategory of eukaryota which includes protozoa.

Mechanism

The mechanisms of antiprotozoal drugs differ significantly drug to drug. For example, it appears that eflornithine, a drug used to treat trypanosomiasis, inhibits ornithine decarboxylase, while the aminoglycoside antibiotic/antiprotozoals used to treat leishmaniasis are thought to inhibit protein synthesis.

Examples