Justin AQ 75mg Injection contains Diclofenac sodium, a nonsteroidal anti-inflammatory drug (NSAID) indicated for the management of pain and inflammation associated with various musculoskeletal disorders, postoperative pain, and acute injury. Diclofenac exerts its therapeutic effect by inhibiting cyclooxygenase (COX-1 and COX-2) enzymes, leading to decreased synthesis of prostaglandins, which are mediators of inflammation and pain. This injectable formulation allows for rapid onset of action, making it suitable for patients requiring prompt relief from moderate to severe pain. Justin AQ 75mg Injection is administered intramuscularly or intravenously under medical supervision, with dosage and duration tailored according to the severity of symptoms and patient response. It is contraindicated in patients with known hypersensitivity to diclofenac, other NSAIDs, or aspirin, as well as those with active gastrointestinal bleeding, severe hepatic or renal impairment, and certain cardiovascular conditions. Caution is advised in patients with a history of asthma, hypertension, or gastrointestinal disorders. Common adverse effects include gastrointestinal discomfort, injection site reactions, headache, and dizziness. Monitoring for signs of gastrointestinal bleeding, renal function, and cardiovascular status is recommended during prolonged therapy. Justin AQ 75mg Injection should be used at the lowest effective dose for the shortest duration necessary to minimize risks.