To Evaluate the Safety of 'Shinbaro Capsule'in Patients With Osteoarthritis

Inclusion Criteria: * Minimum 19 years old * Kellgren stage I \~ III by ACR criteria * Stable osteoarthritis during 3 months * Be able to perform WOMAC and KKS * Written consent form voluntarily Exclusion Criteria: * Disease of orthopaedic surgical that could affect to evaluate the efficacy * Medication of continuous corticosteroid by oral or articular cavity within 12 weeks * Medication of constantly (more than 1 week) antipsychotic drug or narcotic analgesics within four weeks * Medical history of hypersensitivity reaction against Herbal drug * Genetic factors as galactose intolerance, lapplactase deficiency or glucose-galactose malabsorption, etc. * Occurrence of OA caused by the injury * Diagnosed with psychical disorder, and taking medication * Diagnosed with active peptic ulcers, gastrointestinal bleeding, inflammatory bowel disease, severe liver dysfunction, severe renal dysfunction, congestive heart failure, clinically significant ischemic heart disease, peripheral arterial disease, or cerebrovascular diseases * Diagnosed with esophagus and gastrointestinal ulceration within 1 year, or treated it * Abnormal bleeding (abnormal of platelet or blood coagulation factor, etc.) * Positive in fecal occult blood test * Gastrointestinal tract surgery except appendectomy * Serum creatinine, ALT, AST, total bilirubin over UNL x 1.5 at screening test * Participation in another clinical trials within 4 weeks * Not consent about using effectual contraception method during trial * Pregnant or lactating woman * Medical history of malignant tumor within 5 years * Investigator's judgment