Molecular Classification
Other
Other Names
Antiprotozoal drug, Antiprotozoal agent, Antiprotozoals
Disease Roles
Infection

Antiprotozoal Overview

"Antiprotozoal" refers to a drug class comprised of medications used to treat infections caused by protozoa, a diverse group of unicellular eukaryotic parasites. These drugs work via various mechanisms depending on the protozoan species and the chemical class of the agent, such as disrupting DNA replication, inhibiting protein synthesis, or interfering with parasite-specific enzymes or metabolic pathways. Because protozoans are phylogenetically diverse, individual drugs may be effective against only certain pathogens. "Antiprotozoal" is not itself a molecular target, but rather a pharmacological category.

Mechanism of Action

Inhibition of DNA synthesis; Disruption of protozoal cell membrane function; Inhibition of protein synthesis; Inhibition of key parasite enzymes (e.g., ornithine decarboxylase, 14-alpha-sterol demethylase, dehydrogenases); Interference with energy metabolism; Other mechanism, depending on specific agent

Biological Functions

No biological function data available

Disease Associations

Infection

Safety Considerations

  • Toxicity to host cells
  • Development of resistance
  • Incomplete parasite clearance
  • Adverse side effects (may vary by drug, e.g. GI symptoms, bone marrow suppression)

Interacting Drugs

Metronidazole
Chloroquine
Atovaquone
Artemisinin
Pentamidine
Eflornithine
Tinidazole
Pyrimethamine
Benznidazole
Nitazoxanide
Paromomycin
Furazolidone
Hydroxychloroquine
Nifurtimox
Melarsoprol
Mefloquine
Amphotericin B