> Ketamine is normally dosed based on body weight[0]. For depression IV, the dose is 0.1–0.75mg/kg/40mins, most commonly 0.5mg/kg/40mins

If we're being specific, the FDA-approved treatment of ketamine for depression is a fixed 84mg dose. It is not adjusted for body weight.

(I did invite irony by saying that it wasn't a typo - it's 84 and 56 for redoing, not 86 and 54).