Drug combinations refer to the use of two or more medications in combination to treat a specific disease or condition. This approach is often used in order to achieve greater therapeutic efficacy, reduce side effects, or minimize the development of drug resistance. Drug combinations can be used in a variety of medical fields, including oncology, infectious diseases, and psychiatry, among others. Researchers study drug combinations to determine the optimal dosing, timing, and sequencing of drugs in order to maximize their therapeutic effects and minimize potential risks.