Efficacy and Safety Assessment of an Anti-Cold Preparation in the Symptomatic Treatment of Common Cold and Flu-Like Syndrome

Inclusion Criteria: * Age between 18 to 60 years old; * Presenting with at least 6 and at max 72 hours of common cold symptoms (headache, muscle ache, rhinorrhea, nasal obstruction, sneezing, cough, sore or irritated throat, hoarseness, fever) or flu-like syndrome (high fever, muscle or articular ache, headache), with at least two symptoms rated by the patient as moderated to severe in an 0 to 4 scale; * Proper anticonception, in the case of women in fertile age; * Possibility to abstain from using any other drug for the treatment of the studied condition, except in emergencies, in wich case the responsible party must be immediately notified; * Cooperation and understanding skills; * Agreement to informed consent form. Exclusion Criteria: * Pregnant or lactating women; * Hypersensitivity to any of the drug's components; * Alcohol or substance abuse; * Use of MAO inhibitor or barbituric; * Diagnosis of any acute disease in current activity or uncontrolled chronic disease; * Clinical evidence of immunosuppression; * Influenza vaccine less than a week prior to inclusion; * Need for antibiotic treatment for the respiratory infection, in the opinion of the investigator; * Having participated in other clinical trial less than one year prior to inclusion.