判断联合用药还是重复用药还要看临床实践的结果,有没有相关的文献.只从是否作用机理判断也是不全面的.
"Duplications of Therapy
Duplications of therapy are defined as therapeutic or pharmacologic use repetitions of two or more drugs that create an increased potential for additive toxicity or adverse effects, or cause therapeutic redundancy without increased benefit."