THE INVENTION RELATES TO A NEW CRYSTALLINE FORM II OF N-BENZOYL-STAUROSPORINE COMPOSITIONS CONTAINING THE SAME PROCESSES FOR THE PREPARATION THEREOF AND THE USE OF CRYSTALLINE FORM II OF OF N-BENZOYL-STAUROSPORINE IN DIAGNOSTIC METHODS OR THERAPEUTIC TREATMENT OF WARM-BLOODED ANIMALS, ESPECIALLY HUMANS. THE INVENTION RELATES TO THE AMORPHOUS FORMS OF N-BENZOYL-STAUROSPORINE COMPOSITIONS CONTAINING THE SAME PROCESSES FOR THE PREPARATION THEREOF AND THE USE OF AMORPHOUS N-BENZOYL-STAUROSPORINE IN DIAGNOSTIC METHODS OR THERAPEUTIC TREATMENT OF WARM-BLOODED ANIMALS, ESPECIALLY HUMANS.