In my experience, most malaria strains are now immune to chloroquin. Artemesia is good. Mefloquine (Larium) often has bad side effects. I avoid that drug.
Correct you are about the side effects. I was having vision problems because of it and stopped taking it. Hell, we were 40 miles offshore of Nigeria (Drilling for Oil in 1983) and no mosquitoes I thought. I do not know where that little bastard came from, but I caught Malaria. Cyclic fever and cold shakes. The fever was rough but after it subsided you would be exhausted and sleep for a few hours. The cold shakes were the worse. In a 48 hour period you would be in your bunk nude sweating and semi-delirious to be followed by a few hours of deep sleep and then the cold shakes started. The cold shakes were the worst. You could not put on enough blankets to be warm. You would be curled up in a fetal position and the shakes would start. They shakes were your entire muscular system, particularly arms legs and chest.
You do not want to eat but should force yourself to. I lived on rice and butter and soup for two weeks. I did not want to eat anything but those were the easiest on my stomach and had good caloric value. I also lost 15 pounds in two weeks. Pain, deep bone pain. Your bones and joints hurt like hell. Walking up stairs was brutal. I was only 35 years old then.