Phase 3 Study to Evaluate the Efficacy and Safety of DW-1030 and Eperisone HCl in Acute Back Pain Patients

Inclusion Criteria: * Adult males/Females aged over 18 years * Patients with symptom of Acute skeletomuscle myospasm and Back pain * Patients with Pain VAS Value over 40 mm in Visit 2 * Subjects who voluntarily or legal guardian agreed with written consent Exclusion Criteria: * Patients with Back pain caused by spinal spondylosis, spinal stenosis, fractures, cancer, severe arthritis, osteoporosis, sciatica, infection * Muscular patients such as myositis, muscular atrophy disease, increased muscle tone, myasthenia gravis * Patients who had taken invasive procedures such as epidural injections or spinal stimulation to cure the back pain within 6 months from the screening point * Patients who had taken passive physical therapy or ionphoresis within 12 hours from the screening point * Patients with severe GI tract disorder, heart disease, hypertension * Patients who had taken NSAIDS within 24hours from the screening point