A quinolone drug called hydroxychloroquine is used to treat and prevent malaria. In order to treat autoimmune illnesses, it is also employed as a disease-modifying anti-rheumatic medication (DMARD). It is available as oral tablets, which you can only get with a prescription. Among other names, it is also sold under the brand name Plaquenil. It is also offered in a generic form, however you might not always be able to get it in the same dose strength or form as its brand-name counterparts. It is additionally utilised in combination therapy with other medications.