Fenak 25mg Injection contains Diclofenac 25mg, a nonsteroidal anti-inflammatory drug (NSAID) used for the treatment of pain and inflammation associated with various conditions such as musculoskeletal disorders, postoperative pain, and acute injury. Diclofenac works by inhibiting cyclooxygenase enzymes (COX-1 and COX-2), which play a key role in the synthesis of prostaglandins responsible for inflammation, pain, and fever. Fenak 25mg Injection provides rapid relief by delivering the medication directly into the bloodstream, making it suitable for patients who require quick onset of action or are unable to take oral medications. It is commonly administered intramuscularly or intravenously under medical supervision. This injection is indicated for short-term use to manage moderate to severe pain and inflammation. Common side effects may include injection site pain, gastrointestinal discomfort, headache, dizziness, and rarely, allergic reactions. Caution is advised in patients with a history of gastrointestinal ulcers, cardiovascular disease, renal or hepatic impairment, and asthma. Fenak 25mg Injection should be used at the lowest effective dose for the shortest duration necessary to minimize potential adverse effects. It is contraindicated in patients with known hypersensitivity to diclofenac or other NSAIDs. Always consult a healthcare professional before use to ensure safety and appropriate dosing.