Recent theoretical work has shown that under certain conditions enhanced electron-ion interaction may be present in a plasma. This paper investigates the influence of such enhanced interaction on the characteristics of the positive column in a longitudinal magnetic field. The calculations are based on the Boltzmann transport equations, using an effective interaction parameter. Enhanced interaction has several consequences: It causes enhanced diffusion and with that an increase in electron temperature (T−) due to increased particle wall losses. This influence on T− is in general small and may be negligible for nonuniform enhancement. It also has a pronounced influence on the radial distribution depending on the type of diffusion. Finally, for a given electron temperature, enhanced interaction results in an increase of the ion (T+)—and gas (T0) temperatures due to increased energy exchange between electrons and ions. The same effect also changes the relation Xz(T−), Xz being the longitudinal electric field. Consequently, enhanced interaction influences the field Xz in two ways, namely through the increased particle loss (T−) and the energy exchange Xz(T−). The results suggest measurement of the radial potential distribution as a means for experimental investigation of enhanced interaction in the discharge.