sentences:  It is often used in combination with other chemically related herbicides such as 2,4-D, dicamba, and MCPA.The United States Environmental Protection Agency has classified mecoprop as toxicity class III - slightly toxic.Mecoprop is a mixture of two stereoisomers, with the ("R")-(+)-enantiomer ("Mecoprop-P", "Duplosan KV") possessing the herbicidal activity.