Kalmar “antiprotozoal” tana nufin duk wani abu ko magani da ake amfani da shi don rigakafi ko magance cututtukan da ke haifar da protozoa. Protozoa rukuni ne daban-daban na kwayoyin halitta guda daya wadanda zasu iya haifar da cututtuka daban-daban a cikin mutane da dabbobi, kamar zazzabin cizon sauro, giardiasis, toxoplasmosis. an ƙera su don kaiwa protozoa hari da hana haɓakarsu ko kashe su kai tsaye, don haka taimakawa wajen magance ko hana cututtukan da ke haɗuwa. Misalan magungunan antiprotozoal sun haɗa da chloroquine don zazzabin cizon sauro, metronidazole na giardiasis da trichomoniasis, da atovaquone na toxoplasmosis.