Malarone Paediatric Tablet Malarone Paediatric belongs to a group of medicines called antimalarials & contains two active ingredients, atovaquone & proguanil hydrochloride. Malarone Paediatric Tablets are used: To prevent malaria: in children who weigh between 11kg & 40kg. To treat malaria: in children who weigh between 5kg & 10kg. Malarone Paediatric Tablets prevent malaria by killing the malaria parasite which enters the bloodstream via the bite of an infected mosquito. This is also how it treats people who have already been infected. Malarone Paediatric Tablets are round, pink film-coated tablets.