Chloroquine
…blood cell. How it works in rheumatoid arthritis and lupus erythematosus is unclear. Chloroquine was discovered in 1934 by Hans Andersag. It is on the World Health Organization's List of Essential Medicines. It is available as a generic medication. Chloroquine has been used in the treatment and prevention of malaria from Plasmodium vivax, P. ovale, and P…