Ketoprofen Lysine Salt as Mouthwash in Acute Phlogosis of the Pharyngeal Cavity Versus Benzidamine Hydrochloride

Inclusion Criteria: * Male and female outpatients, aged 18 to 70 years, suffering from acute pharyngitis, pharyngolaryngitis * Moderately or severely intense pain in the pharyngeal region (score ≥ 70 mm) from the "visual analogue scale" (VAS) * At least 1 of the 2 inflammation signs (edema and hyperemia) to be moderately or severely intense (score ≥ 2) from the scoring scale from 0 to 3 * Release of written informed consent by the patient Exclusion Criteria: * Patients suffering from a microbial infection requiring specific antimicrobial treatment * Patients who have taken the trial drugs during the week before enrolment * Patients who have taken corticosteroids or antibiotics during the week before enrolment * Ascertained or suspected hypersensitivity to trial drugs or to chemically correlated drugs or to other non-steroidal anti-inflammatory drugs or to mouthwashes in general * Patients who are unable to properly fill in the diary every day as provided for by the protocol * Ascertained or presumed pregnant or lactating women * Inclusion in any other clinical trial during the study