دوا (Medicine) is a substance used to prevent, diagnose, or treat illnesses and medical conditions. It can come in various forms, including tablets, liquids, and injections. Medicines work by interacting with the body's systems to alleviate symptoms or cure diseases. The development of دوا involves extensive research and testing to ensure safety and effectiveness. Healthcare professionals, such as doctors and pharmacists, play a crucial role in prescribing and dispensing these medications. Proper use of دوا is essential for achieving the desired health outcomes and minimizing potential side effects.