Dual therapy refers to a treatment approach that combines two different medications or therapies to enhance effectiveness in managing a specific condition. This method is often used in various medical fields, including cardiology and infectious diseases, to improve patient outcomes by targeting multiple pathways or mechanisms of action. In the context of HIV treatment, for example, dual therapy may involve using two antiretroviral drugs to suppress the virus more effectively than a single medication. This strategy can help reduce the risk of drug resistance and improve overall treatment success, making it a valuable option for many patients.