SB-252263 (Tafenoquine, TQ) is an 8-aminoquinoline (8-AQ) antimalarial drug being developed by GlaxoSmithKline (GSK), the U.S. Army Medical Research and Materiel Command (USAMRMC) and Medicines for Malaria Venture (MMV). TQ is currently being developed for the radical cure of acute P. vivax malaria in combination with standard doses of CQ, which is 1500 mg over 3 days.