I talked it over with my doctor, the pros and cons of taking Chloroquinone. He advised me that you have to take it once a day, 1 week before you go, during your stay, and 1 week after. Let's start adding that up. A local discount department store sells them for $85.00 for 10 of them. About $175.00 the way I add it up. Times 2 people? Personally I am going to take my chances with DEET. I figured too, they must have it available there for the locals and it has to be much cheeper, although you do have to take it one week before you go. Just my opinion but I did the leg work to find out how much it costs. Doc also says sometimes the medicine makes you queezy and advised against drinking alcohol while on the meds. I AM ON VACATION OFCOURSE I AM GOING TO DRINK AND PLENTY OF IT! So case closed I am taking my chances with DEET. He says that the daytime posses little threat, it's after sundown that they come out to bite ya. Make sure you have your DEET applied to all exposed areas.