Primaquine for Vivax Malaria in G6PD Intermediate and Deficient Cases.

Inclusion Criteria: * • P. vivax peripheral parasitaemia (mono-infection) * G6PD intermediate or deficient status (G6PD activity 30-\<70% or ≤30% of the adjusted male median as determined by the Standard G6PD (SDBioline, ROK)) * Fever (temperature ≥37.5⁰C) or history of fever in the preceding 48 hours * Age ≥18 years * Haemoglobin at presentation ≥8g/dl * Written informed consent * Living in the study area and willing to be followed for six months. Exclusion Criteria: * • Danger signs or symptoms of severe malaria * Pregnant or lactating females * Regular use of drugs with haemolytic potential * Known hypersensitivity to any of the study drugs.