Patient satisfaction is an important outcome of the treatment of erectile dysfunction. Improvement in erectile function leads to increased patient satisfaction with the therapy. One of the most commonly used questionnaires is EDITS. This study is the first direct comparison of patients' satisfaction with sildenafil (Viagra) vs. dietary supplements. Dietary supplements do not require a medical prescription in the Czech Republic and we háve very limited data about their efficacy and patient satisfaction with this therapy.

        Key words: erectile dysfunction, sildenafil, Viagra, dietary supplements, EDITS questionnaire