A role used to imply the interaction or binding of an active ingredient of a drug/chemical agent at the molecular level with its target. When possible, the role value should reflect the direct alteration of function of a target molecule or complex. The domain and range for this role are 'Drug, Food, Chemical or Biomedical Material' and 'Biological Process', respectively.

Synonyms: Chemical_Or_Drug_Has_Mechanism_Of_Action