Summary 1. 247 patients with malaria were treated with Camoquin. There were 156 patients in the vivax infection group, 86 patients in the falciparum infection group, and 5 patients in the malariae infection group. 2. There were 19 readmissions to the hospital in the vivax group, of these 19 patients four patients had two or more readmissions. There were no readmissions in the falciparum or malariae group. 3. Clinical symptoms were controlled within 24 to 48 hours. 4. There were no toxic reactions to the drug.