Zacy-MR Tablet is a combination medication containing Thiocolchicoside (4mg), Aceclofenac (100mg), and Paracetamol (325mg), formulated to provide effective relief from musculoskeletal pain and inflammation. Thiocolchicoside acts as a muscle relaxant by selectively inhibiting gamma-aminobutyric acid (GABA) and glycine receptors, thereby reducing muscle spasms and associated discomfort. Aceclofenac, a non-steroidal anti-inflammatory drug (NSAID), exerts potent anti-inflammatory and analgesic effects by inhibiting cyclooxygenase enzymes (COX-1 and COX-2), leading to decreased prostaglandin synthesis. Paracetamol contributes additional analgesic and antipyretic benefits through central inhibition of prostaglandin synthesis, enhancing overall pain relief. Zacy-MR is indicated for the management of acute musculoskeletal conditions such as strains, sprains, and low back pain, as well as inflammatory disorders including osteoarthritis and rheumatoid arthritis. The combination therapy provides synergistic effects, addressing pain, inflammation, and muscle spasm simultaneously. It is recommended to be used under medical supervision, with caution in patients with hepatic, renal, or gastrointestinal impairments. Common adverse effects may include gastrointestinal discomfort, dizziness, or allergic reactions. Patients should adhere to prescribed dosages and report any unusual symptoms promptly to their healthcare provider.