This paper presents a discussion of problems on regulation of the energy, temporal, and optical parameters of metal-vapor lasers. Some ways to regulate these parameters by applying to a discharge tube additional pulse-periodic voltage in a variable time delay with respect to the main excitation pulse are observed. Such a superposition of two pulse-periodic discharges in one and the same tube enables one to perform excitation with a regulated ionization, what, in its turn, allows one to optimize the efficiency and vary the duration and energy of laser generation.