Zix-MR OD Capsule is a combination medication containing Aceclofenac 200 mg and Thiocolchicoside 8 mg, formulated for the management of musculoskeletal pain and inflammation associated with conditions such as osteoarthritis, rheumatoid arthritis, and acute musculoskeletal disorders. Aceclofenac, a non-steroidal anti-inflammatory drug (NSAID), exerts its therapeutic effect by inhibiting cyclooxygenase enzymes (COX-1 and COX-2), thereby reducing the synthesis of prostaglandins responsible for pain, inflammation, and swelling. Thiocolchicoside, a muscle relaxant with anti-inflammatory properties, acts by selectively binding to GABA and glycine receptors in the central nervous system, leading to muscle relaxation and relief from muscle spasms. The once-daily dosing regimen of Zix-MR OD Capsule enhances patient compliance while providing sustained analgesic and muscle-relaxant effects. It is indicated for the symptomatic treatment of painful muscle spasms and inflammatory conditions where muscle relaxation is required. Caution is advised in patients with a history of gastrointestinal ulcers, cardiovascular disorders, or hypersensitivity to NSAIDs. Use during pregnancy and lactation should be avoided unless clearly necessary. Adverse effects may include gastrointestinal discomfort, dizziness, or allergic reactions. Consultation with a healthcare professional is recommended prior to initiation to ensure appropriate use and monitoring.