“The mean IC50, IC90 and IC99 values for mefloquine were 1.76, 9.81 and 39.78 μM, those for mefloquine + retinol "low" 0.… and 3.48 μM, and those for mefloquine + retinol "high" 0.20, 0.85 and 2.70 μM. Evidence for strong synergism between mefloquine … retinol ….”