Headnap-D Tablet contains Naproxen 500 mg and Domperidone 10 mg, combining the anti-inflammatory and analgesic properties of Naproxen with the prokinetic and antiemetic effects of Domperidone. Naproxen, a nonsteroidal anti-inflammatory drug (NSAID), is effective in reducing pain, inflammation, and fever by inhibiting cyclooxygenase enzymes (COX-1 and COX-2), thereby decreasing prostaglandin synthesis. It is commonly indicated for conditions such as musculoskeletal pain, arthritis, dysmenorrhea, and other inflammatory disorders. Domperidone, a dopamine D2 receptor antagonist, facilitates gastric motility and accelerates gastric emptying, which helps alleviate nausea and vomiting often associated with gastrointestinal disturbances or as a side effect of analgesic therapy. The combination in Headnap-D Tablet is particularly useful for patients experiencing pain accompanied by gastrointestinal discomfort or nausea. It is recommended to be taken under medical supervision, with caution in patients with a history of gastrointestinal ulcers, cardiovascular disease, or hepatic impairment. Common adverse effects may include gastrointestinal irritation, headache, dizziness, and dry mouth. Patients should avoid concurrent use with other NSAIDs or medications that prolong QT interval. Headnap-D Tablet should be used at the prescribed dose and duration to minimize risks and ensure therapeutic efficacy.