atovaquone
noun
ato·va·quone
| \ ə-ˈtō-və-ˌkwōn
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Medical Definition of atovaquone
: an antiprotozoal drug C22H19O3Cl taken orally especially for the prevention and treatment of Pneumocystis carinii pneumonia and falciparum malaria
Note: Atovaquone is used in combination with proguanil in the prevention and treatment of falciparum malaria, a preparation that is marketed under the trademark Malarone.