Study to Assess the Efficacy and Safety of "Pílulas de Lussen®" Compared to the Pyridium® in the Symptomatic Control of Dysuria

Inclusion Criteria: * Patients over the age of 18 years; * Patients with symptoms of dysuria characterized by pain/burning sensation in the lower urinary tract and discomfort in urination; * Patients who are female and are of childbearing age should use reliable method of contraception and have negative pregnancy test. * Patients who consent to participate in the study. Exclusion Criteria: * Patients with sensitivity to any component of the formula; * Patients pregnant or lactating; * Patients with a history of glaucoma, heart failure, cardiac arrhythmias, prostatic hypertrophy, paralytic ileus or pyloric stenosis; * Patients with menorrhagia or heavy menstrual periods; * Patients who need to use antibiotics or chemotherapy; * Patients who can not follow the procedures shown in this Clinical Protocol.