[en] Plasma kinetic description was proposed to elucidate the role of drift effects in the tokamak MHD-modes, which is of importance for the regimes of rare collisions characteristic for thermonuclear tokamaks. Investigated were the kinetic drift instabilities, connected with the Sidem disturbances under the conditions when MHD instability of these disturbances is suppressed by the effect of the Larmour finite radius of ions. Such kinetic instabilities are shown to take place at ν < 0 and ν > 2/3, where ν--deltalnTsub(o)/deltalnnsub(o) Tsub(o) and nsub(o) being plasma temperature and density