Instaflex AR 200mg/20mg Capsule SR is a combination medication containing Aceclofenac 200mg, a non-steroidal anti-inflammatory drug (NSAID), and Rabeprazole 20mg, a proton pump inhibitor. This formulation is designed for the management of inflammatory conditions such as osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis, providing effective analgesic and anti-inflammatory effects through Aceclofenac. The sustained-release (SR) capsule ensures prolonged therapeutic action, enhancing patient compliance by reducing dosing frequency. Rabeprazole is included to mitigate the gastrointestinal side effects commonly associated with NSAIDs, such as gastric irritation, ulcers, and dyspepsia, by suppressing gastric acid secretion. Instaflex AR is indicated for patients requiring long-term NSAID therapy with a concurrent need for gastric protection. It should be used under medical supervision, with caution advised in patients with a history of hypersensitivity to NSAIDs, active gastrointestinal bleeding, severe hepatic or renal impairment, and cardiovascular disorders. Common adverse effects may include gastrointestinal discomfort, headache, dizziness, and skin reactions. Regular monitoring of renal and hepatic function is recommended during prolonged use. Instaflex AR 200mg/20mg Capsule SR offers a balanced approach to managing pain and inflammation while minimizing gastrointestinal risks.