We have investigated the excitation process of hydrogen-like multicharged ions by the impact
of different charged projectiles such as electrons, positrons, protons and antiprotons. The
universal scaling behaviour for the differential and total cross sections is deduced within the
framework of the non-relativistic perturbation theory, taking into account the one-photon
exchange diagrams. Special emphasis is laid on the description of the reaction in the
near-threshold energy domain, which requires the accurate account for interactions between all
particles in the colliding system.