A trial tested Guanxinning tablets, a combination of Salvia miltiorrhiza and Ligusticum chuanxiong, to reduce residual inflammation risk (RIR) in stable coronary artery disease (SCAD) patients on standard atherosclerotic cardiovascular disease (ASCVD) treatment. Results showed Guanxinning effectively lowered inflammation-related indicators (IL-2, IL-6, TNF-α, hs-CRP), improved blood lipid profiles (Tch, LDL-C), and endothelial function (VEGF, NO, PPAR-γ), without increasing safety risks like liver or kidney dysfunction, anemia, or bleeding.