30yr old male running high grade fever with chills and rigors recurring every 6-7 hrs, rapid diagnostic test for falciparum malaria is positive, started on oral artesunate lumefantrin, and primaquine. Taking Dolo 650 for fever, on CBC- WBC count 4000, hb 13, platelet 1.5lac . Initially BP was 94/50 which improved after IV ringer lactate , since the rigors are recurring every few hrs , do I need to consider injectable artesunate??