The invention relates to medical products coming into contact with the organism, such as short-term implants and long-term implants, coated with at least one layer containing an active substance dissolved or distributed in a molecularly dispersed manner in at least one carrier substance and optionally at least one auxiliary substance, said at least one layer forming a non-flowable solution. The invention also relates to a method for producing said coating from non-flowable solutions and to the use of said medical products coated with a non-flowable solution.