- In cases of severe malaria, rescue treatment will be intravenous artesunate at a dose of 2.4 mg/kg at 0, 12 and 24 hours, then once every 24 hrs until the patient can take oral therapy (This will be followed by 3-days full course of ACT) Non-falciparum species detected during follow up should be treated with Chloroquine for 3 days in the case of infection with P. vivax or P. ovale.