Zerodol-CR Tablet contains Aceclofenac 200 mg, a non-steroidal anti-inflammatory drug (NSAID) with potent analgesic and anti-inflammatory properties. It is primarily indicated for the relief of pain and inflammation associated with musculoskeletal disorders such as osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis. Aceclofenac works by inhibiting cyclooxygenase (COX-1 and COX-2) enzymes, leading to decreased synthesis of prostaglandins, which are mediators of inflammation and pain. Zerodol-CR is formulated as a controlled-release tablet to provide sustained therapeutic effects, improving patient compliance by reducing dosing frequency. It is effective in managing acute pain conditions including postoperative pain and soft tissue injuries. The drug should be used with caution in patients with a history of gastrointestinal ulcers, bleeding disorders, or renal impairment. Common adverse effects may include gastrointestinal discomfort, nausea, dizziness, and rash. It is contraindicated in patients with known hypersensitivity to aceclofenac, aspirin, or other NSAIDs, and in those with severe hepatic or renal dysfunction. Zerodol-CR should be administered under medical supervision, with regular monitoring for potential side effects, especially during prolonged therapy. It is advised to use the lowest effective dose for the shortest duration necessary to minimize risks.