Where NI, C, EC50 and n are the normalized infection, Gx-psDiMan concentration, concentration giving 50% apparent inhibition, and inhibition coefficient (with n >, = and < 1 indicating positive-, non-, and negative-inhibiting cooperativity, respectively). Whilst EC50 is a key indicator and widely used to assess the potency of antivirals, the inhibition coefficient "n" is much less mentioned in literature. However, "n" is also of great importance for antivirals: it indicates how quickly an inhibitor can achieve complete inhibition by increasing concentration. For example, three inhibitors have the same EC50 but different "n" values, the theoretical concentration required to inhibit 99% infection would be 9801, 99, and 9.9 times that of the EC50 value for n = 0.5, 1 and 2, respectively. Therefore, antivirals displaying "n" ≥ 1 (with n = 1 being the most widely observed in literature) are much more effective inhibitors than those having n < 1, allowing for complete inhibition to be achieved at reasonable concentrations.