The purpose of this study is to evaluate the efficacy of S (+) - ibuprofen compared to an active treatment for pain control in individuals diagnosed with osteoarthritis.

Main Inclusion Criteria:

• Ability to confirm voluntary participation and agree to all trial purposes by signing and dating the informed consent forms;
• Patients aged from 18 to 75 with a diagnosis of knee and/or hip osteoarthritis according to American College of Rheumatology (ACR) criteria.

Main Exclusion Criteria:

• Known hypersensitivity to the formula components used during the clinical trial;
• Previous history of alcohol or drugs abuse diagnosed by DSM-V;
• Current or previous history (less than 12 months) of smoking;
• Have clinically relevant abnormal laboratory results according to medical evaluation;
• Women who are pregnant, lactating, or positive for β - hCG urine test;