"Combination therapy, the use of more than one type of therapy in treating a patient"
https://blog.dana-farber.org/insight/2016/11/what-is-combination-therapy/
"Combination drug therapy is defined as the use of 2 or more pharmacologic agents administered separately or in a fixed-dose combination of 2 or more active ingredients in a single-dosage formulation. Combination therapy is frequently prescribed by physicians to treat and manage a plethora of medical conditions; however, without thorough monitoring, various problems can arise."
https://www.pharmacytimes.com/view/rxfocuscombination-0110
"Combination therapy, a treatment modality that combines two or more therapeutic agents, is a cornerstone of cancer therapy."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5514969/
"Many people with type 2 diabetes need two or more drugs, or combination therapy, to keep blood glucose levels within target range and avoid diabetes-related complications."
https://www.medicalnewstoday.com/articles/combination-therapy-type-2-diabetes
"Combination drug therapy is simply using drugs together with the purpose of increasing efficacy. There are a lot of diseases treated with combination therapy, including tuberculosis, HIV, and many cancers."
https://now.tufts.edu/2022/01/14/what-combination-drug-therapy