4521 is currently developing the following drugs: Kp-001, Fluvoxamine, Rosuvastatin Calcium10mg, Caffeine Citrate, Kp-001, Moxifloxacin 400 Mg, Midazolam, Metformin, Clarithromycin, Kp-001. These drug candidates are in various stages of clinical development as the company works toward FDA approval.