As with anything health related, it's important to keep in mind that in these early stages of research, some things may show promise and not end up being a solution. Once medical science has found something that is clinically proven effective we'll definitely be hearing all about it pretty much everywhere.
These antimalarial drugs quinine, chloroquine and mefloquine are antagonists and very similar in efficacy.
Its history goes back to Peru (South America), where the indigenous people extracted the bark of the Cinchona trees and used the extract (Chinchona officinalis) to fight chills and fever in the seventeenth century. In 1633 this herbal medicine was introduced in Europe, where it was given the same use and also began to be used against malaria. The quinoline antimalarial drug quinine was isolated from the extract in 1820, and chloroquine is an analogue of this.