You want doxycycline for malaria, it's cheap, readily available, has no major side effects, heck they even use to to treat acne.
I've also been told that the best way to go about things is to take the doxy until you are settled in with everything, then go off it, if you think you're getting sick get a $5 blood test, if you are positive for malaria then self administer the curative malaria kit (CMK).