AQ-13 dihydrochloride is primarily used in the field of medical research, particularly in the study and treatment of malaria. It is an antimalarial agent that has shown efficacy against Plasmodium falciparum, the parasite responsible for the most severe form of malaria. Researchers are exploring its potential as an alternative to traditional antimalarial drugs, especially in cases where resistance to conventional treatments like chloroquine has developed. Its application includes preclinical and clinical studies to evaluate its safety, effectiveness, and pharmacokinetics. Additionally, AQ-13 dihydrochloride is being investigated for its mechanism of action to better understand how it combats malaria parasites, which could lead to the development of new therapeutic strategies.