Hydroxychloroquine sulfate

Antimalarial; autophagy inhibitor; endosomal acidification fusion inhibitor. In clinical trials (alongside chloroquine) for SARS-CoV-2 infection; multiple potential mechanisms, including inhibiting viral endocytosis and attenuating the "cytokine storm". Hu et al. Nat. Nanotechnol., Mar 23 2020, https://doi.org/10.1038/s41565-020-0674-9; Schrezenmeier & Dörner Nat. Rev. Rheumatol., 16:155-166, March 2020, https://doi.org/10.1038/s41584-020-0372-x.