Baro M., Kaiser H.-Ch., Neidhardt H., Rehberg J Dissipative Schr\"odinger-Poisson systems (435K, Postscript) ABSTRACT. The paper is devoted to the dissipative Sch\"odinger-Poisson system. We prove that the system always admits a solution and that all solutions of a given Schr\"odinger-Poisson system are included in a uniform ball whose radius depends only on the data of the system.